{"product_id":"megan-racing-bmw-3-series-e46-99-05-spec-rs-series-coilovers-mr-cdk-e46-rs","title":"Megan Racing - BMW 3-Series (E46) 99-05 – Spec-RS Series Coilovers – MR-CDK-E46-RS","description":"\u003cp data-start=\"670\" data-end=\"1071\"\u003eEnhance handling precision, chassis balance, and suspension control on your BMW E46 3-Series with the \u003cstrong data-start=\"772\" data-end=\"855\"\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 aggressive street driving, track use, and performance-oriented builds, the Spec-RS system delivers advanced adjustability and consistent damping performance tailored specifically for the E46 chassis.\u003c\/p\u003e\n\u003cp data-start=\"1073\" data-end=\"1505\"\u003eThis high-performance coilover system features \u003cstrong data-start=\"1120\" data-end=\"1183\"\u003e32 levels of independent compression and rebound adjustment\u003c\/strong\u003e, allowing drivers to fine-tune suspension response for different road conditions, driving styles, and alignment goals. Compression damping is adjusted via external reservoirs for increased oil capacity and improved thermal stability, while rebound adjustment is easily accessed at the top of each damper for quick tuning.\u003c\/p\u003e\n\u003cp data-start=\"1507\" data-end=\"1816\"\u003eRide height adjustment is fully independent of spring preload through CNC-machined locking spring perches and adjustable shock body length. This design preserves full suspension stroke at all ride heights and enables accurate corner balancing and aggressive alignment setups without sacrificing damper travel.\u003c\/p\u003e\n\u003cp data-start=\"1818\" data-end=\"2284\"\u003eFor strut-type suspension applications, the Spec-RS system includes \u003cstrong data-start=\"1886\" data-end=\"1950\"\u003epillow-ball upper mounts with integrated front camber plates\u003c\/strong\u003e, allowing precise camber tuning to improve turn-in response, steering feedback, 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 long-term performance.\u003c\/p\u003e\n\u003ch1 data-start=\"2291\" data-end=\"2312\"\u003e\u003cstrong data-start=\"2293\" data-end=\"2310\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"2315\" data-end=\"2434\"\u003e\n\u003cstrong data-start=\"2315\" data-end=\"2364\"\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=\"2437\" data-end=\"2527\"\u003e\n\u003cstrong data-start=\"2437\" data-end=\"2461\"\u003eExternal Reservoirs:\u003c\/strong\u003e Increased oil capacity with independent compression adjustment.\u003c\/li\u003e\n\u003cli data-start=\"2530\" data-end=\"2607\"\u003e\n\u003cstrong data-start=\"2530\" data-end=\"2565\"\u003eTop-Mounted Rebound Adjustment:\u003c\/strong\u003e Quick and accessible suspension tuning.\u003c\/li\u003e\n\u003cli data-start=\"2610\" data-end=\"2726\"\u003e\n\u003cstrong data-start=\"2610\" data-end=\"2649\"\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=\"2729\" data-end=\"2822\"\u003e\n\u003cstrong data-start=\"2729\" data-end=\"2758\"\u003ePillow-Ball Upper Mounts:\u003c\/strong\u003e Reduces suspension deflection and sharpens steering response.\u003c\/li\u003e\n\u003cli data-start=\"2825\" data-end=\"2913\"\u003e\n\u003cstrong data-start=\"2825\" data-end=\"2849\"\u003eFront Camber Plates:\u003c\/strong\u003e Enables aggressive alignment tuning for street and track use.\u003c\/li\u003e\n\u003cli data-start=\"2916\" data-end=\"3003\"\u003e\n\u003cstrong data-start=\"2916\" data-end=\"2948\"\u003eDual-Cylinder Damper Design:\u003c\/strong\u003e Improves damping consistency and control under load.\u003c\/li\u003e\n\u003cli data-start=\"3006\" data-end=\"3121\"\u003e\n\u003cstrong data-start=\"3006\" data-end=\"3037\"\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=\"3124\" data-end=\"3190\"\u003e\n\u003cstrong data-start=\"3124\" data-end=\"3159\"\u003eComplete Hardware Kit Included:\u003c\/strong\u003e Ready for direct installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3197\" data-end=\"3218\"\u003e\u003cstrong data-start=\"3199\" data-end=\"3216\"\u003eSpring Rates:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3221\" data-end=\"3241\"\u003e\n\u003cstrong data-start=\"3221\" data-end=\"3231\"\u003eFront:\u003c\/strong\u003e 8 kg\/mm\u003c\/li\u003e\n\u003cli data-start=\"3244\" data-end=\"3264\"\u003e\n\u003cstrong data-start=\"3244\" data-end=\"3253\"\u003eRear:\u003c\/strong\u003e 10 kg\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3271\" data-end=\"3306\"\u003e\u003cstrong data-start=\"3273\" data-end=\"3304\"\u003eDamper Adjustment Guidance:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3309\" data-end=\"3329\"\u003e\n\u003cstrong data-start=\"3309\" data-end=\"3317\"\u003e1–8:\u003c\/strong\u003e Track use\u003c\/li\u003e\n\u003cli data-start=\"3332\" data-end=\"3373\"\u003e\n\u003cstrong data-start=\"3332\" data-end=\"3341\"\u003e9–16:\u003c\/strong\u003e Mountain \/ aggressive driving\u003c\/li\u003e\n\u003cli data-start=\"3376\" data-end=\"3403\"\u003e\n\u003cstrong data-start=\"3376\" data-end=\"3386\"\u003e17–32:\u003c\/strong\u003e Street driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3410\" data-end=\"3426\"\u003e\u003cstrong data-start=\"3412\" data-end=\"3424\"\u003eFitment:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3429\" data-end=\"3459\"\u003eBMW 3-Series E46 (1999–2005)\u003c\/li\u003e\n\u003cli data-start=\"3462\" data-end=\"3492\"\u003eRear-Wheel Drive models only\u003c\/li\u003e\n\u003cli data-start=\"3495\" data-end=\"3528\"\u003e\u003cem data-start=\"3495\" data-end=\"3528\"\u003eExcludes AWD (xi) and M3 models\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3535\" data-end=\"3559\"\u003e\u003cstrong data-start=\"3537\" data-end=\"3557\"\u003eImportant Notes:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3562\" data-end=\"3669\"\u003eThis coilover system is designed for aggressive lowering and \u003cstrong data-start=\"3623\" data-end=\"3666\"\u003ecannot be adjusted to stock ride height\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"3672\" data-end=\"3740\"\u003eIntended for performance-oriented setups requiring a lowered stance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"3747\" data-end=\"3767\"\u003e\u003cstrong data-start=\"3749\" data-end=\"3765\"\u003ePart Number:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli data-start=\"3770\" data-end=\"3785\"\u003eMR-CDK-E46-RS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Megan Racing","offers":[{"title":"Default Title","offer_id":45200501506220,"sku":"MR-CDK-E46-RS","price":1439.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/2626\/0652\/files\/Screenshot2026-01-02200944.png?v=1767377412","url":"https:\/\/mrperformance.us\/products\/megan-racing-bmw-3-series-e46-99-05-spec-rs-series-coilovers-mr-cdk-e46-rs","provider":"Mr. Performance","version":"1.0","type":"link"}