{"title":"Digressive Nissan","description":"\u003cp data-start=\"159\" data-end=\"641\"\u003eRiaction Nissan coilovers are engineered to deliver sharper handling, improved stability, and consistent control for both daily driving and performance builds. Built around a digressive piston valving system, these coilovers provide strong low-speed damping to reduce body roll, improve steering response, and keep your Nissan composed during braking and cornering. As suspension speeds increase, the damping curve adapts to maintain ride comfort while absorbing road imperfections.\u003c\/p\u003e\n\u003cp data-start=\"643\" data-end=\"1002\"\u003eWith full-length ride height adjustment and 32 levels of damping control, Riaction Nissan coilovers allow you to fine-tune your suspension setup for street driving, drifting, or track use. This level of adjustability gives you the flexibility to dial in both stance and handling characteristics while maintaining a predictable and balanced driving experience.\u003c\/p\u003e\n\u003cp data-start=\"1004\" data-end=\"1356\"\u003eConstructed with a mono-tube damper design, high-flow pistons, and corrosion-resistant materials, these performance shocks are built for durability and consistent performance under load. From platforms like the 350Z, 370Z, 240SX, and GT-R, Riaction digressive coilovers deliver the grip, feedback, and control needed to get the most out of your Nissan.\u003c\/p\u003e","products":[{"product_id":"2009-2021-nissan-370z-z34-traction-plus-ultra-coilovers","title":"2009-2021 Nissan 370Z Z34 Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"308\" data-end=\"626\"\u003eEnhance stability and precision in your \u003cstrong data-start=\"348\" data-end=\"377\"\u003e2009-2021 Nissan 370Z Z34\u003c\/strong\u003e with Riaction Traction Plus Ultra coilovers. Designed for the wider, more rigid Z34 chassis, the TPU system improves braking composure, sharpens turn-in response, and delivers more controlled rear traction during aggressive cornering and acceleration.\u003c\/p\u003e\n\u003cp data-start=\"628\" data-end=\"1036\"\u003eAt the core of Traction Plus Ultra is our \u003cstrong data-start=\"667\" data-end=\"699\"\u003enew digressive piston design\u003c\/strong\u003e, engineered to provide strong low-speed damping for improved roll control and steering accuracy while maintaining composure as suspension velocity increases. On the Z34 platform, this translates into more consistent weight transfer, greater high-speed stability, and improved driver confidence during spirited driving or track sessions.\u003c\/p\u003e\n\u003cp data-start=\"1038\" data-end=\"1471\"\u003eEach kit features a \u003cstrong data-start=\"1058\" data-end=\"1086\"\u003enickel-coated shock body\u003c\/strong\u003e for superior corrosion resistance and long-term durability. The \u003cstrong data-start=\"1151\" data-end=\"1194\"\u003ehex screw preload collar locking system\u003c\/strong\u003e ensures secure spring preload under repeated hard use. Signature orange-coated non-MacPherson components add durability and a distinctive performance finish, while pillowball upper mounts are included where applicable to maximize suspension articulation and steering feedback.\u003c\/p\u003e\n\u003cp data-start=\"1473\" data-end=\"1544\"\u003eEvery Traction Plus Ultra system is backed by our 2-year factory warranty.\u003c\/p\u003e\n\u003chr data-start=\"1546\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1551\" data-end=\"1593\"\u003e🔧 \u003cstrong data-start=\"1554\" data-end=\"1593\"\u003eTraction Plus Ultra Coilover Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1595\" data-end=\"2197\"\u003eFull-Length Ride Height Adjustment\u003cbr data-start=\"1629\" data-end=\"1632\"\u003e32-Level Damping Adjustment\u003cbr data-start=\"1659\" data-end=\"1662\"\u003eNew Digressive Piston Valving\u003cbr data-start=\"1691\" data-end=\"1694\"\u003eMono-Tube Damper Design\u003cbr data-start=\"1717\" data-end=\"1720\"\u003eNickel-Coated Shock Body for Corrosion Protection\u003cbr data-start=\"1769\" data-end=\"1772\"\u003eHex Screw Preload Collar Locking System\u003cbr data-start=\"1811\" data-end=\"1814\"\u003eSignature Orange Coating on Non-MacPherson Components\u003cbr data-start=\"1867\" data-end=\"1870\"\u003ePillowball Upper Mounts (When Applicable)\u003cbr data-start=\"1911\" data-end=\"1914\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003cbr data-start=\"1953\" data-end=\"1956\"\u003eCNC 6061 Aluminum Floating Piston\u003cbr data-start=\"1989\" data-end=\"1992\"\u003ePolyurethane Oil Seals\u003cbr data-start=\"2014\" data-end=\"2017\"\u003eSAE9254 Cold-Wound Performance Springs\u003cbr data-start=\"2055\" data-end=\"2058\"\u003eMulti-Thickness Valving Shims\u003cbr data-start=\"2087\" data-end=\"2090\"\u003eLow-Gas Pressure Internal Design\u003cbr data-start=\"2122\" data-end=\"2125\"\u003e7.5w Compounded Suspension Fluid\u003cbr data-start=\"2157\" data-end=\"2160\"\u003eFully Rebuildable Coilover Assembly\u003c\/p\u003e\n\u003chr data-start=\"2199\" data-end=\"2202\"\u003e\n\u003cp data-start=\"2204\" data-end=\"2259\"\u003e⚙️ \u003cstrong data-start=\"2207\" data-end=\"2232\"\u003eFactory Spring Rates:\u003c\/strong\u003e\u003cbr data-start=\"2232\" data-end=\"2235\"\u003eFront: 12K\u003cbr data-start=\"2245\" data-end=\"2248\"\u003eRear: 8K\u003c\/p\u003e\n\u003chr data-start=\"2261\" data-end=\"2264\"\u003e\n\u003cp data-start=\"2266\" data-end=\"2379\"\u003e📧 \u003cstrong data-start=\"2269\" data-end=\"2294\"\u003eInternational Orders:\u003c\/strong\u003e\u003cbr data-start=\"2294\" data-end=\"2297\"\u003eFor international shipping inquiries, please email us at \u003ca data-start=\"2354\" data-end=\"2377\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-d1qk0x1f.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-start=\"2381\" data-end=\"2384\"\u003e\n\u003cp data-start=\"2386\" data-end=\"2572\"\u003eRefine chassis balance and elevate performance in your 2009-2021 Nissan 370Z Z34 with Traction Plus Ultra coilovers, precision-engineered performance shocks from Riaction Performance Shocks.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385720598804,"sku":"0NS-003-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385720631572,"sku":"0NS-003-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/2009-2021Nissan370ZZ34TractionPlusUltraCoilovers_41986aad-0318-44c8-8025-834946dd6934.webp?v=1776892202"},{"product_id":"1989-1994-nissan-silvia-s13-traction-plus-ultra-coilovers","title":"1989-1994 Nissan Silvia S13 Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"284\" data-end=\"637\"\u003eBring sharper response and controlled weight transfer to your \u003cstrong data-start=\"346\" data-end=\"377\"\u003e1989-1994 Nissan Silvia S13\u003c\/strong\u003e with Riaction Traction Plus Ultra coilovers. Designed for lightweight rear-wheel-drive platforms, the TPU system enhances front-end grip, improves transitional stability, and delivers more predictable rear traction during aggressive cornering and throttle input.\u003c\/p\u003e\n\u003cp data-start=\"639\" data-end=\"1005\"\u003eTraction Plus Ultra is built around our \u003cstrong data-start=\"676\" data-end=\"708\"\u003enew digressive piston design\u003c\/strong\u003e, engineered to provide firm low-speed damping for improved roll resistance and steering precision while maintaining compliance as suspension speed increases. On the S13 chassis, this translates into quicker response during rapid direction changes and greater confidence when driving at the limit.\u003c\/p\u003e\n\u003cp data-start=\"1007\" data-end=\"1449\"\u003eEach kit features a \u003cstrong data-start=\"1027\" data-end=\"1055\"\u003enickel-coated shock body\u003c\/strong\u003e for corrosion resistance and long-term durability. The \u003cstrong data-start=\"1111\" data-end=\"1154\"\u003ehex screw preload collar locking system\u003c\/strong\u003e ensures secure spring preload under repeated hard driving. Signature orange coating on non-MacPherson components adds both protection and a distinctive performance appearance, while pillowball upper mounts are included where applicable to maximize steering accuracy and suspension articulation.\u003c\/p\u003e\n\u003cp data-start=\"1451\" data-end=\"1522\"\u003eEvery Traction Plus Ultra system is backed by our 2-year factory warranty.\u003c\/p\u003e\n\u003chr data-start=\"1524\" data-end=\"1527\"\u003e\n\u003cp data-start=\"1529\" data-end=\"1571\"\u003e🔧 \u003cstrong data-start=\"1532\" data-end=\"1571\"\u003eTraction Plus Ultra Coilover Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1573\" data-end=\"2175\"\u003eFull-Length Ride Height Adjustment\u003cbr data-start=\"1607\" data-end=\"1610\"\u003e32-Level Damping Adjustment\u003cbr data-start=\"1637\" data-end=\"1640\"\u003eNew Digressive Piston Valving\u003cbr data-start=\"1669\" data-end=\"1672\"\u003eMono-Tube Damper Design\u003cbr data-start=\"1695\" data-end=\"1698\"\u003eNickel-Coated Shock Body for Corrosion Protection\u003cbr data-start=\"1747\" data-end=\"1750\"\u003eHex Screw Preload Collar Locking System\u003cbr data-start=\"1789\" data-end=\"1792\"\u003eSignature Orange Coating on Non-MacPherson Components\u003cbr data-start=\"1845\" data-end=\"1848\"\u003ePillowball Upper Mounts (When Applicable)\u003cbr data-start=\"1889\" data-end=\"1892\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003cbr data-start=\"1931\" data-end=\"1934\"\u003eCNC 6061 Aluminum Floating Piston\u003cbr data-start=\"1967\" data-end=\"1970\"\u003ePolyurethane Oil Seals\u003cbr data-start=\"1992\" data-end=\"1995\"\u003eSAE9254 Cold-Wound Performance Springs\u003cbr data-start=\"2033\" data-end=\"2036\"\u003eMulti-Thickness Valving Shims\u003cbr data-start=\"2065\" data-end=\"2068\"\u003eLow-Gas Pressure Internal Design\u003cbr data-start=\"2100\" data-end=\"2103\"\u003e7.5w Compounded Suspension Fluid\u003cbr data-start=\"2135\" data-end=\"2138\"\u003eFully Rebuildable Coilover Assembly\u003c\/p\u003e\n\u003chr data-start=\"2177\" data-end=\"2180\"\u003e\n\u003cp data-start=\"2182\" data-end=\"2237\"\u003e⚙️ \u003cstrong data-start=\"2185\" data-end=\"2210\"\u003eFactory Spring Rates:\u003c\/strong\u003e\u003cbr data-start=\"2210\" data-end=\"2213\"\u003eFront: 8K\u003cbr data-start=\"2223\" data-end=\"2226\"\u003eRear: 6K\u003c\/p\u003e\n\u003chr data-start=\"2239\" data-end=\"2242\"\u003e\n\u003cp data-start=\"2244\" data-end=\"2357\"\u003e📧 \u003cstrong data-start=\"2247\" data-end=\"2272\"\u003eInternational Orders:\u003c\/strong\u003e\u003cbr data-start=\"2272\" data-end=\"2275\"\u003eFor international shipping inquiries, please email us at \u003ca data-start=\"2332\" data-end=\"2355\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-d1qk0x1f.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-start=\"2359\" data-end=\"2362\"\u003e\n\u003cp data-start=\"2364\" data-end=\"2541\"\u003eElevate control and driving confidence in your 1989-1994 Nissan Silvia S13 with Traction Plus Ultra coilovers, advanced performance shocks engineered by Riaction Performance Shocks.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385736163604,"sku":"0NS-004-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385736196372,"sku":"0NS-004-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/1989-1994NissanSilviaS13TractionPlusUltraCoilovers_49df711e-e2b1-4baf-a4ea-cb536e70ed0e.webp?v=1776892200"},{"product_id":"1995-2002-nissan-silvia-s14-15-traction-plus-ultra-coilovers","title":"1995-2002 Nissan Silvia S14 \/ S15 Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"303\" data-end=\"669\"\u003eUnlock sharper rotation and improved chassis stability in your \u003cstrong data-start=\"366\" data-end=\"403\"\u003e1995-2002 Nissan Silvia S14 \/ S15\u003c\/strong\u003e with Riaction Traction Plus Ultra coilovers. Designed for lightweight rear-wheel-drive platforms known for precision and driver feedback, the TPU system enhances turn-in response, reduces excessive body roll, and delivers more predictable rear traction under throttle.\u003c\/p\u003e\n\u003cp data-start=\"671\" data-end=\"1046\"\u003eAt the center of Traction Plus Ultra is our \u003cstrong data-start=\"712\" data-end=\"744\"\u003enew digressive piston design\u003c\/strong\u003e, engineered to provide strong low-speed damping for improved steering accuracy and roll resistance while maintaining compliance over uneven pavement. On the S-chassis platform, this results in smoother weight transfer during transitions and more controlled rear-end behavior when pushing at the limit.\u003c\/p\u003e\n\u003cp data-start=\"1048\" data-end=\"1508\"\u003eEach kit is built around a \u003cstrong data-start=\"1075\" data-end=\"1103\"\u003enickel-coated shock body\u003c\/strong\u003e to resist corrosion and maintain consistent performance over time. The \u003cstrong data-start=\"1175\" data-end=\"1218\"\u003ehex screw preload collar locking system\u003c\/strong\u003e ensures secure spring preload during aggressive driving. Signature orange-coated non-MacPherson components provide added durability and a distinctive performance finish, while pillowball upper mounts are included where applicable to increase steering precision and suspension articulation.\u003c\/p\u003e\n\u003cp data-start=\"1510\" data-end=\"1581\"\u003eEvery Traction Plus Ultra system is backed by our 2-year factory warranty.\u003c\/p\u003e\n\u003chr data-start=\"1583\" data-end=\"1586\"\u003e\n\u003cp data-start=\"1588\" data-end=\"1630\"\u003e🔧 \u003cstrong data-start=\"1591\" data-end=\"1630\"\u003eTraction Plus Ultra Coilover Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1632\" data-end=\"2234\"\u003eFull-Length Ride Height Adjustment\u003cbr data-start=\"1666\" data-end=\"1669\"\u003e32-Level Damping Adjustment\u003cbr data-start=\"1696\" data-end=\"1699\"\u003eNew Digressive Piston Valving\u003cbr data-start=\"1728\" data-end=\"1731\"\u003eMono-Tube Damper Design\u003cbr data-start=\"1754\" data-end=\"1757\"\u003eNickel-Coated Shock Body for Corrosion Protection\u003cbr data-start=\"1806\" data-end=\"1809\"\u003eHex Screw Preload Collar Locking System\u003cbr data-start=\"1848\" data-end=\"1851\"\u003eSignature Orange Coating on Non-MacPherson Components\u003cbr data-start=\"1904\" data-end=\"1907\"\u003ePillowball Upper Mounts (When Applicable)\u003cbr data-start=\"1948\" data-end=\"1951\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003cbr data-start=\"1990\" data-end=\"1993\"\u003eCNC 6061 Aluminum Floating Piston\u003cbr data-start=\"2026\" data-end=\"2029\"\u003ePolyurethane Oil Seals\u003cbr data-start=\"2051\" data-end=\"2054\"\u003eSAE9254 Cold-Wound Performance Springs\u003cbr data-start=\"2092\" data-end=\"2095\"\u003eMulti-Thickness Valving Shims\u003cbr data-start=\"2124\" data-end=\"2127\"\u003eLow-Gas Pressure Internal Design\u003cbr data-start=\"2159\" data-end=\"2162\"\u003e7.5w Compounded Suspension Fluid\u003cbr data-start=\"2194\" data-end=\"2197\"\u003eFully Rebuildable Coilover Assembly\u003c\/p\u003e\n\u003chr data-start=\"2236\" data-end=\"2239\"\u003e\n\u003cp data-start=\"2241\" data-end=\"2296\"\u003e⚙️ \u003cstrong data-start=\"2244\" data-end=\"2269\"\u003eFactory Spring Rates:\u003c\/strong\u003e\u003cbr data-start=\"2269\" data-end=\"2272\"\u003eFront: 8K\u003cbr data-start=\"2282\" data-end=\"2285\"\u003eRear: 6K\u003c\/p\u003e\n\u003chr data-start=\"2298\" data-end=\"2301\"\u003e\n\u003cp data-start=\"2303\" data-end=\"2414\"\u003e📧 \u003cstrong data-start=\"2306\" data-end=\"2331\"\u003eInternational Orders:\u003c\/strong\u003e\u003cbr data-start=\"2331\" data-end=\"2334\"\u003eFor international shipping inquiries, please email us at \u003ca data-start=\"2391\" data-end=\"2414\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-d1qk0x1f.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-start=\"2416\" data-end=\"2419\"\u003e\n\u003cp data-start=\"2421\" data-end=\"2614\"\u003eSharpen chassis response and elevate control in your 1995-2002 Nissan Silvia S14 or S15 with Traction Plus Ultra coilovers, precision-engineered performance shocks from Riaction Performance Shocks.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385736982804,"sku":"0NS-005-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385737015572,"sku":"0NS-005-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/1995-2002NissanSilviaS14S15TractionPlusUltraCoilovers_04deaeee-40fc-450b-a220-8c65a38c86c0.webp?v=1776892196"},{"product_id":"2003-2008-nissan-350z-z33-traction-plus-ultra-coilovers","title":"2003-2008 Nissan 350Z Z33 Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"294\" data-end=\"628\"\u003eEnhance the balance and control of your \u003cstrong data-start=\"334\" data-end=\"363\"\u003e2003-2008 Nissan 350Z Z33\u003c\/strong\u003e with Riaction Traction Plus Ultra coilovers. Designed for rear-wheel-drive performance platforms, the TPU system improves braking stability, sharpens front-end response, and delivers more predictable rear traction during aggressive cornering and throttle application.\u003c\/p\u003e\n\u003cp data-start=\"630\" data-end=\"1019\"\u003eTraction Plus Ultra is built around our \u003cstrong data-start=\"667\" data-end=\"699\"\u003enew digressive piston design\u003c\/strong\u003e, engineered to provide strong low-speed damping for improved roll control and chassis stability while maintaining composure as suspension speed increases. On the Z33 platform, this translates into better weight transfer management, improved confidence during high-speed transitions, and more consistent grip under load.\u003c\/p\u003e\n\u003cp data-start=\"1021\" data-end=\"1460\"\u003eEach kit features a \u003cstrong data-start=\"1041\" data-end=\"1069\"\u003enickel-coated shock body\u003c\/strong\u003e for superior corrosion resistance and long-term durability. The \u003cstrong data-start=\"1134\" data-end=\"1177\"\u003ehex screw preload collar locking system\u003c\/strong\u003e ensures secure spring preload during repeated hard driving. Signature orange-coated non-MacPherson components add durability and a distinctive performance finish, while pillowball upper mounts are included where applicable to maximize steering precision and suspension articulation.\u003c\/p\u003e\n\u003cp data-start=\"1462\" data-end=\"1533\"\u003eEvery Traction Plus Ultra system is backed by our 2-year factory warranty.\u003c\/p\u003e\n\u003chr data-start=\"1535\" data-end=\"1538\"\u003e\n\u003cp data-start=\"1540\" data-end=\"1582\"\u003e🔧 \u003cstrong data-start=\"1543\" data-end=\"1582\"\u003eTraction Plus Ultra Coilover Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1584\" data-end=\"2186\"\u003eFull-Length Ride Height Adjustment\u003cbr data-start=\"1618\" data-end=\"1621\"\u003e32-Level Damping Adjustment\u003cbr data-start=\"1648\" data-end=\"1651\"\u003eNew Digressive Piston Valving\u003cbr data-start=\"1680\" data-end=\"1683\"\u003eMono-Tube Damper Design\u003cbr data-start=\"1706\" data-end=\"1709\"\u003eNickel-Coated Shock Body for Corrosion Protection\u003cbr data-start=\"1758\" data-end=\"1761\"\u003eHex Screw Preload Collar Locking System\u003cbr data-start=\"1800\" data-end=\"1803\"\u003eSignature Orange Coating on Non-MacPherson Components\u003cbr data-start=\"1856\" data-end=\"1859\"\u003ePillowball Upper Mounts (When Applicable)\u003cbr data-start=\"1900\" data-end=\"1903\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003cbr data-start=\"1942\" data-end=\"1945\"\u003eCNC 6061 Aluminum Floating Piston\u003cbr data-start=\"1978\" data-end=\"1981\"\u003ePolyurethane Oil Seals\u003cbr data-start=\"2003\" data-end=\"2006\"\u003eSAE9254 Cold-Wound Performance Springs\u003cbr data-start=\"2044\" data-end=\"2047\"\u003eMulti-Thickness Valving Shims\u003cbr data-start=\"2076\" data-end=\"2079\"\u003eLow-Gas Pressure Internal Design\u003cbr data-start=\"2111\" data-end=\"2114\"\u003e7.5w Compounded Suspension Fluid\u003cbr data-start=\"2146\" data-end=\"2149\"\u003eFully Rebuildable Coilover Assembly\u003c\/p\u003e\n\u003chr data-start=\"2188\" data-end=\"2191\"\u003e\n\u003cp data-start=\"2193\" data-end=\"2248\"\u003e⚙️ \u003cstrong data-start=\"2196\" data-end=\"2221\"\u003eFactory Spring Rates:\u003c\/strong\u003e\u003cbr data-start=\"2221\" data-end=\"2224\"\u003eFront: 12K\u003cbr data-start=\"2234\" data-end=\"2237\"\u003eRear: 8K\u003c\/p\u003e\n\u003chr data-start=\"2250\" data-end=\"2253\"\u003e\n\u003cp data-start=\"2255\" data-end=\"2366\"\u003e📧 \u003cstrong data-start=\"2258\" data-end=\"2283\"\u003eInternational Orders:\u003c\/strong\u003e\u003cbr data-start=\"2283\" data-end=\"2286\"\u003eFor international shipping inquiries, please email us at \u003ca data-start=\"2343\" data-end=\"2366\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-d1qk0x1f.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-start=\"2368\" data-end=\"2371\"\u003e\n\u003cp data-start=\"2373\" data-end=\"2556\"\u003eImprove chassis balance and driving confidence in your 2003-2008 Nissan 350Z Z33 with Traction Plus Ultra coilovers, advanced performance shocks engineered by Riaction Performance Shocks.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385720172820,"sku":"0NS-007-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385720205588,"sku":"0NS-007-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/2003-2008Nissan350ZZ33TractionPlusUltraCoilovers_b1915afb-f7ba-4c9e-8f87-350e0cb96bed.webp?v=1776892193"},{"product_id":"1998-2002-nissan-skyline-gtt-traction-plus-ultra-coilovers","title":"1998-2002 Nissan Skyline GTT Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"322\" data-end=\"643\"\u003eTake control of your \u003cstrong data-start=\"343\" data-end=\"380\"\u003e1998-2002 Nissan Skyline GTT ER34\u003c\/strong\u003e with Riaction Traction Plus Ultra coilovers. Designed for turbocharged rear-wheel-drive performance platforms, the TPU system enhances front-end bite, stabilizes rear traction under boost, and delivers more predictable weight transfer during aggressive transitions.\u003c\/p\u003e\n\u003cp data-start=\"645\" data-end=\"1038\"\u003eAt the core of Traction Plus Ultra is our \u003cstrong data-start=\"684\" data-end=\"716\"\u003enew digressive piston design\u003c\/strong\u003e, engineered to provide firm low-speed damping for improved roll resistance and sharper steering response while maintaining composure over uneven pavement. On the ER34 chassis, this translates into better mid-corner stability, improved throttle modulation control, and reduced rear-end instability under hard acceleration.\u003c\/p\u003e\n\u003cp data-start=\"1040\" data-end=\"1506\"\u003eEach kit features a \u003cstrong data-start=\"1060\" data-end=\"1088\"\u003enickel-coated shock body\u003c\/strong\u003e for superior corrosion resistance and long-term durability. The \u003cstrong data-start=\"1153\" data-end=\"1196\"\u003ehex screw preload collar locking system\u003c\/strong\u003e keeps spring preload secure during high-load driving and repeated heat cycles. Signature orange-coated non-MacPherson components add both protection and a distinctive performance appearance, while pillowball upper mounts are included where applicable to maximize steering accuracy and suspension articulation.\u003c\/p\u003e\n\u003cp data-start=\"1508\" data-end=\"1579\"\u003eEvery Traction Plus Ultra system is backed by our 2-year factory warranty.\u003c\/p\u003e\n\u003chr data-start=\"1581\" data-end=\"1584\"\u003e\n\u003cp data-start=\"1586\" data-end=\"1628\"\u003e🔧 \u003cstrong data-start=\"1589\" data-end=\"1628\"\u003eTraction Plus Ultra Coilover Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1630\" data-end=\"2232\"\u003eFull-Length Ride Height Adjustment\u003cbr data-start=\"1664\" data-end=\"1667\"\u003e32-Level Damping Adjustment\u003cbr data-start=\"1694\" data-end=\"1697\"\u003eNew Digressive Piston Valving\u003cbr data-start=\"1726\" data-end=\"1729\"\u003eMono-Tube Damper Design\u003cbr data-start=\"1752\" data-end=\"1755\"\u003eNickel-Coated Shock Body for Corrosion Protection\u003cbr data-start=\"1804\" data-end=\"1807\"\u003eHex Screw Preload Collar Locking System\u003cbr data-start=\"1846\" data-end=\"1849\"\u003eSignature Orange Coating on Non-MacPherson Components\u003cbr data-start=\"1902\" data-end=\"1905\"\u003ePillowball Upper Mounts (When Applicable)\u003cbr data-start=\"1946\" data-end=\"1949\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003cbr data-start=\"1988\" data-end=\"1991\"\u003eCNC 6061 Aluminum Floating Piston\u003cbr data-start=\"2024\" data-end=\"2027\"\u003ePolyurethane Oil Seals\u003cbr data-start=\"2049\" data-end=\"2052\"\u003eSAE9254 Cold-Wound Performance Springs\u003cbr data-start=\"2090\" data-end=\"2093\"\u003eMulti-Thickness Valving Shims\u003cbr data-start=\"2122\" data-end=\"2125\"\u003eLow-Gas Pressure Internal Design\u003cbr data-start=\"2157\" data-end=\"2160\"\u003e7.5w Compounded Suspension Fluid\u003cbr data-start=\"2192\" data-end=\"2195\"\u003eFully Rebuildable Coilover Assembly\u003c\/p\u003e\n\u003chr data-start=\"2234\" data-end=\"2237\"\u003e\n\u003cp data-start=\"2239\" data-end=\"2294\"\u003e⚙️ \u003cstrong data-start=\"2242\" data-end=\"2267\"\u003eFactory Spring Rates:\u003c\/strong\u003e\u003cbr data-start=\"2267\" data-end=\"2270\"\u003eFront: 12K\u003cbr data-start=\"2280\" data-end=\"2283\"\u003eRear: 6K\u003c\/p\u003e\n\u003chr data-start=\"2296\" data-end=\"2299\"\u003e\n\u003cp data-start=\"2301\" data-end=\"2412\"\u003e📧 \u003cstrong data-start=\"2304\" data-end=\"2329\"\u003eInternational Orders:\u003c\/strong\u003e\u003cbr data-start=\"2329\" data-end=\"2332\"\u003eFor international shipping inquiries, please email us at \u003ca data-start=\"2389\" data-end=\"2412\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-d1qk0x1f.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-start=\"2414\" data-end=\"2417\"\u003e\n\u003cp data-start=\"2419\" data-end=\"2612\"\u003eRefine throttle control and chassis stability in your 1998-2002 Nissan Skyline GTT ER34 with Traction Plus Ultra coilovers—precision-engineered performance shocks from Riaction Performance Shocks.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385737802004,"sku":"0NS-047-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385737834772,"sku":"0NS-047-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/1998-2002NissanSkylineGTTTractionPlusUltraCoilovers_302ca31b-dbe8-4156-967c-806177421662.webp?v=1776892190"},{"product_id":"2009-2021-nissan-370z-true-rear-coilover-traction-plus-ultra-coilovers","title":"2009-2021 Nissan 370Z (True Rear Coilover) Traction Plus Ultra Coilovers","description":"\u003cp data-start=\"83\" data-end=\"473\"\u003eEngineered for the \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eNissan 370Z Z34\u003c\/span\u003e\u003c\/span\u003e, the \u003cstrong data-start=\"145\" data-end=\"199\"\u003eRiaction Traction Plus Ultra (TPU) Coilover System\u003c\/strong\u003e is designed to maximize stability, traction, and control on the Z34 chassis. With a \u003cstrong data-start=\"284\" data-end=\"320\"\u003etrue rear coilover configuration\u003c\/strong\u003e, this system improves rear-end response, enhances braking composure, and delivers more consistent traction during aggressive cornering and acceleration.\u003c\/p\u003e\n\u003cp data-start=\"475\" data-end=\"838\"\u003eAt the core of the TPU system is a \u003cstrong data-start=\"510\" data-end=\"538\"\u003edigressive piston design\u003c\/strong\u003e, providing \u003cstrong data-start=\"550\" data-end=\"624\"\u003estrong low-speed damping for sharper turn-in and improved roll control\u003c\/strong\u003e, while maintaining composure as suspension velocity increases. This results in more predictable weight transfer, greater high-speed stability, and increased driver confidence during spirited driving and track use.\u003c\/p\u003e\n\u003cp data-start=\"840\" data-end=\"1027\"\u003eBuilt for drivers who demand precision and durability, the TPU system incorporates reinforced components and advanced materials to handle repeated high-load conditions without compromise.\u003c\/p\u003e\n\u003chr data-start=\"1029\" data-end=\"1032\"\u003e\n\u003ch3 data-section-id=\"1tsf9cf\" data-start=\"1034\" data-end=\"1065\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1038\" data-end=\"1065\"\u003eCoilover Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1067\" data-end=\"1731\"\u003e\n\u003cli data-section-id=\"14ff3pc\" data-start=\"1067\" data-end=\"1105\"\u003eFull-Length Ride Height Adjustment\u003c\/li\u003e\n\u003cli data-section-id=\"uv3rs5\" data-start=\"1106\" data-end=\"1137\"\u003e32-Level Damping Adjustment\u003c\/li\u003e\n\u003cli data-section-id=\"1ognk4d\" data-start=\"1138\" data-end=\"1171\"\u003e\u003cstrong data-start=\"1140\" data-end=\"1169\"\u003eDigressive Piston Valving\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"114uddp\" data-start=\"1172\" data-end=\"1199\"\u003eMono-Tube Damper Design\u003c\/li\u003e\n\u003cli data-section-id=\"1qb6e0n\" data-start=\"1200\" data-end=\"1253\"\u003eNickel-Coated Shock Body for Corrosion Resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1ecah31\" data-start=\"1254\" data-end=\"1297\"\u003eHex Screw Preload Collar Locking System\u003c\/li\u003e\n\u003cli data-section-id=\"n5nzl1\" data-start=\"1298\" data-end=\"1331\"\u003eTrue Rear Coilover Conversion\u003c\/li\u003e\n\u003cli data-section-id=\"16ri8dk\" data-start=\"1332\" data-end=\"1389\"\u003eSignature Orange Coating on Non-MacPherson Components\u003c\/li\u003e\n\u003cli data-section-id=\"1iq1rfb\" data-start=\"1390\" data-end=\"1436\"\u003ePillowball Upper Mounts (Where Applicable)\u003c\/li\u003e\n\u003cli data-section-id=\"1719dr7\" data-start=\"1437\" data-end=\"1480\"\u003e44mm High-Flow CNC 6061 Aluminum Piston\u003c\/li\u003e\n\u003cli data-section-id=\"9momyq\" data-start=\"1481\" data-end=\"1518\"\u003eCNC 6061 Aluminum Floating Piston\u003c\/li\u003e\n\u003cli data-section-id=\"b67xsk\" data-start=\"1519\" data-end=\"1545\"\u003ePolyurethane Oil Seals\u003c\/li\u003e\n\u003cli data-section-id=\"1n9ylfl\" data-start=\"1546\" data-end=\"1588\"\u003eSAE9254 Cold-Wound Performance Springs\u003c\/li\u003e\n\u003cli data-section-id=\"1kumvv\" data-start=\"1589\" data-end=\"1622\"\u003eMulti-Thickness Valving Shims\u003c\/li\u003e\n\u003cli data-section-id=\"13uns0p\" data-start=\"1623\" data-end=\"1659\"\u003eLow Gas Pressure Internal Design\u003c\/li\u003e\n\u003cli data-section-id=\"18iagfo\" data-start=\"1660\" data-end=\"1696\"\u003e7.5W Compounded Suspension Fluid\u003c\/li\u003e\n\u003cli data-section-id=\"z0s0lw\" data-start=\"1697\" data-end=\"1731\"\u003eFully Rebuildable Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1733\" data-end=\"1736\"\u003e\n\u003ch3 data-section-id=\"9ju9k6\" data-start=\"1738\" data-end=\"1758\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1742\" data-end=\"1758\"\u003eSpring Rates\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1760\" data-end=\"1787\"\u003e\n\u003cli data-section-id=\"i4a1ln\" data-start=\"1760\" data-end=\"1774\"\u003eFront: 12K\u003c\/li\u003e\n\u003cli data-section-id=\"xlo2th\" data-start=\"1775\" data-end=\"1787\"\u003eRear: 8K\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1789\" data-end=\"1792\"\u003e\n\u003ch3 data-section-id=\"1spwv26\" data-start=\"1794\" data-end=\"1817\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1798\" data-end=\"1817\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1819\" data-end=\"1913\"\u003e\n\u003cli data-section-id=\"2bqovz\" data-start=\"1819\" data-end=\"1863\"\u003eFull set of 4 coilovers (front and rear)\u003c\/li\u003e\n\u003cli data-section-id=\"1wlq2z2\" data-start=\"1864\" data-end=\"1884\"\u003eSpanner wrenches\u003c\/li\u003e\n\u003cli data-section-id=\"12grdvo\" data-start=\"1885\" data-end=\"1913\"\u003eDamping adjustment knobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1915\" data-end=\"1918\"\u003e\n\u003ch3 data-section-id=\"kz7vhu\" data-start=\"1920\" data-end=\"1936\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1924\" data-end=\"1936\"\u003eWarranty\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1938\" data-end=\"1991\"\u003e2-Year Factory Warranty against manufacturer defects.\u003c\/p\u003e\n\u003chr data-start=\"1993\" data-end=\"1996\"\u003e\n\u003ch3 data-section-id=\"1ep1a4h\" data-start=\"1998\" data-end=\"2026\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2002\" data-end=\"2026\"\u003eInternational Orders\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2028\" data-end=\"2093\"\u003eFor international inquiries, contact:\u003cbr data-start=\"2065\" data-end=\"2068\"\u003e\u003ca data-start=\"2068\" data-end=\"2091\" class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003einfo@riactionshocks.com\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse fill=\"currentColor\" href=\"\/cdn\/assets\/sprites-core-97566a9e.svg#304883\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Factory Springs","offer_id":52385721549076,"sku":"0NS-002-TPU","price":1780.0,"currency_code":"USD","in_stock":true},{"title":"Swift Upgrade (+370)","offer_id":52385721581844,"sku":"0NS-002-TPU","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3833\/7812\/files\/2009-2021Nissan370ZZ34TractionPlusUltraCoilovers_eae351db-8f31-4306-89f6-c078b3ecd510.webp?v=1776892146"}],"url":"https:\/\/www.riactionperformanceshocks.com\/collections\/nissan-digressive-coilovers.oembed","provider":"Riaction Performance Shocks","version":"1.0","type":"link"}