{"product_id":"megan-racing-nissan-240sx-89-94-s13-spec-rs-series-coilovers-mr-cdk-ns13-rs","title":"Megan Racing - Nissan 240SX 89-94 S13 – Spec-RS Series Coilovers – MR-CDK-NS13-RS","description":"\u003cp data-start=\"682\" data-end=\"1080\"\u003eEnhance handling precision, suspension control, and chassis balance on your Nissan 240SX S13 with the \u003cstrong data-start=\"784\" data-end=\"867\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMegan Racing\u003c\/span\u003e\u003c\/span\u003e Spec-RS Series Coilover Suspension System\u003c\/strong\u003e. Engineered for drift, track, and aggressive street driving, the Spec-RS platform delivers extensive adjustability, consistent damping performance, and durable construction specifically tuned for the S13 chassis.\u003c\/p\u003e\n\u003cp data-start=\"1082\" data-end=\"1478\"\u003eThis advanced coilover system features \u003cstrong data-start=\"1121\" data-end=\"1184\"\u003e32 levels of independent compression and rebound adjustment\u003c\/strong\u003e, allowing drivers to precisely tune suspension behavior for varying surfaces and driving styles. Compression damping is adjusted via external reservoirs to increase oil capacity and thermal stability, while rebound adjustment is conveniently located at the top of each damper for quick access.\u003c\/p\u003e\n\u003cp data-start=\"1480\" data-end=\"1780\"\u003eRide height is adjusted independently of spring preload using CNC-machined locking spring perches and adjustable shock body length. This design preserves full suspension stroke at all ride heights and allows accurate corner balancing and aggressive alignment setups without sacrificing damper travel.\u003c\/p\u003e\n\u003cp data-start=\"1782\" data-end=\"2256\"\u003eFor strut-type suspension applications, the Spec-RS system includes \u003cstrong data-start=\"1850\" data-end=\"1914\"\u003epillow-ball upper mounts with integrated front camber plates\u003c\/strong\u003e, enabling precise camber adjustment to improve steering response, predictability, and tire wear. Constructed from high-strength steel with aluminum rear brackets and paired with SAE-9254 cold-wound springs tested beyond 500,000 compression cycles, this suspension system is built for durability, consistency, and competitive performance use.\u003c\/p\u003e\n\u003ch1 data-start=\"2263\" data-end=\"2284\"\u003e\u003cstrong data-start=\"2265\" data-end=\"2282\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"2287\" data-end=\"2406\"\u003e\n\u003cstrong data-start=\"2287\" data-end=\"2336\"\u003eIndependent Compression \u0026amp; Rebound Adjustment:\u003c\/strong\u003e 32-step damping control with separate tuning for maximum precision.\u003c\/li\u003e\n\u003cli data-start=\"2409\" data-end=\"2499\"\u003e\n\u003cstrong data-start=\"2409\" data-end=\"2433\"\u003eExternal Reservoirs:\u003c\/strong\u003e Increased oil capacity with independent compression adjustment.\u003c\/li\u003e\n\u003cli data-start=\"2502\" data-end=\"2588\"\u003e\n\u003cstrong data-start=\"2502\" data-end=\"2537\"\u003eTop-Mounted Rebound Adjustment:\u003c\/strong\u003e Quick and accessible tuning without disassembly.\u003c\/li\u003e\n\u003cli data-start=\"2591\" data-end=\"2707\"\u003e\n\u003cstrong data-start=\"2591\" data-end=\"2630\"\u003eIndependent Ride Height Adjustment:\u003c\/strong\u003e Shock length adjusts separately from spring preload to retain full stroke.\u003c\/li\u003e\n\u003cli data-start=\"2710\" data-end=\"2803\"\u003e\n\u003cstrong data-start=\"2710\" data-end=\"2739\"\u003ePillow-Ball Upper Mounts:\u003c\/strong\u003e Reduces suspension deflection and sharpens steering response.\u003c\/li\u003e\n\u003cli data-start=\"2806\" data-end=\"2893\"\u003e\n\u003cstrong data-start=\"2806\" data-end=\"2830\"\u003eFront Camber Plates:\u003c\/strong\u003e Enables aggressive alignment tuning for drift and track use.\u003c\/li\u003e\n\u003cli data-start=\"2896\" data-end=\"2972\"\u003e\n\u003cstrong data-start=\"2896\" data-end=\"2928\"\u003eDual-Cylinder Damper Design:\u003c\/strong\u003e Improves damping consistency and control.\u003c\/li\u003e\n\u003cli data-start=\"2975\" data-end=\"3090\"\u003e\n\u003cstrong data-start=\"2975\" data-end=\"3006\"\u003eHigh-Strength Construction:\u003c\/strong\u003e Steel front brackets with aluminum rear brackets for strength and reduced weight.\u003c\/li\u003e\n\u003cli data-start=\"3093\" data-end=\"3159\"\u003e\n\u003cstrong data-start=\"3093\" data-end=\"3128\"\u003eComplete Hardware Kit Included:\u003c\/strong\u003e Ready for direct installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3166\" data-end=\"3187\"\u003e\u003cstrong data-start=\"3168\" data-end=\"3185\"\u003eSpring Rates:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3190\" data-end=\"3210\"\u003e\n\u003cstrong data-start=\"3190\" data-end=\"3200\"\u003eFront:\u003c\/strong\u003e 7 kg\/mm\u003c\/li\u003e\n\u003cli data-start=\"3213\" data-end=\"3232\"\u003e\n\u003cstrong data-start=\"3213\" data-end=\"3222\"\u003eRear:\u003c\/strong\u003e 5 kg\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3239\" data-end=\"3274\"\u003e\u003cstrong data-start=\"3241\" data-end=\"3272\"\u003eDamper Adjustment Guidance:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3277\" data-end=\"3297\"\u003e\n\u003cstrong data-start=\"3277\" data-end=\"3285\"\u003e1–8:\u003c\/strong\u003e Track use\u003c\/li\u003e\n\u003cli data-start=\"3300\" data-end=\"3341\"\u003e\n\u003cstrong data-start=\"3300\" data-end=\"3309\"\u003e9–16:\u003c\/strong\u003e Mountain \/ aggressive driving\u003c\/li\u003e\n\u003cli data-start=\"3344\" data-end=\"3371\"\u003e\n\u003cstrong data-start=\"3344\" data-end=\"3354\"\u003e17–32:\u003c\/strong\u003e Street driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3378\" data-end=\"3394\"\u003e\u003cstrong data-start=\"3380\" data-end=\"3392\"\u003eFitment:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3397\" data-end=\"3425\"\u003eNissan 240SX S13 (1989–1994)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3432\" data-end=\"3456\"\u003e\u003cstrong data-start=\"3434\" data-end=\"3454\"\u003eImportant Notes:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3459\" data-end=\"3566\"\u003eThis coilover system is designed for aggressive lowering and \u003cstrong data-start=\"3520\" data-end=\"3563\"\u003ecannot be adjusted to stock ride height\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"3569\" data-end=\"3637\"\u003eIntended for performance-oriented setups requiring a lowered stance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3644\" data-end=\"3664\"\u003e\u003cstrong data-start=\"3646\" data-end=\"3662\"\u003ePart Number:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3667\" data-end=\"3683\"\u003eMR-CDK-NS13-RS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Megan Racing","offers":[{"title":"Default Title","offer_id":45200469098668,"sku":"MR-CDK-NS13-RS","price":1439.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2626\/0652\/files\/mr-cdk-ns13-rs-1.jpg?v=1767374984","url":"https:\/\/mrperformance.us\/products\/megan-racing-nissan-240sx-89-94-s13-spec-rs-series-coilovers-mr-cdk-ns13-rs","provider":"Mr. Performance","version":"1.0","type":"link"}