{"product_id":"nrw-4130-billet-chromoly-vanos-covers","title":"NRW 4130 Billet Chromoly VANOS Covers","description":"\u003ch3\u003eBMW E9x M3 S65 4130 Chromoly Bolt-Through VANOS Covers\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA Permanent, High-Strength Replacement for Aging OEM S65 Plastic VANOS Covers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIntroducing the latest solution from NRW Design: the S65 4130 Chromoly Bolt-Through VANOS Covers, engineered specifically for the BMW E9x M3 and its high-revving S65 V8.\u003c\/p\u003e\n\u003cp\u003eFor years, S65 owners have asked NRW Design to develop a solution for the aging and deteriorating factory plastic VANOS covers. With several aftermarket replacement options already available, we initially felt there were sufficient solutions on the market.\u003c\/p\u003e\n\u003cp\u003eOver time, however, we observed failures associated with both aging OEM plastic covers and aftermarket clip-in style designs. After seeing the potential consequences firsthand, we decided to approach the problem differently.\u003c\/p\u003e\n\u003cp\u003eThe result is the NRW Design 4130 Chromoly Bolt-Through VANOS Cover.\u003c\/p\u003e\n\u003ch3\u003eWhy Replace the Factory S65 VANOS Covers?\u003c\/h3\u003e\n\u003cp\u003eAs the E9x M3 platform continues to age, deterioration of the factory plastic VANOS covers has become an increasingly important maintenance consideration.\u003c\/p\u003e\n\u003cp\u003eNRW Design recently encountered a customer vehicle where an OEM plastic VANOS cover experienced a complete failure. The resulting component failure allowed the VANOS spring to damage the valve cover and contributed to extensive engine damage.\u003c\/p\u003e\n\u003cp\u003eThat experience reinforced our decision to develop a replacement designed around material strength and positive mechanical retention rather than another clip-in solution.\u003c\/p\u003e\n\u003ch3\u003eBillet 4130 Chromoly Steel Construction\u003c\/h3\u003e\n\u003cp\u003eThe latest version of our S65 VANOS covers is precision machined from billet 4130 chromoly steel.\u003c\/p\u003e\n\u003cp\u003e4130 chromoly was selected for its excellent strength characteristics, allowing us to produce a compact, lightweight component capable of handling the demands of the S65 VANOS system.\u003c\/p\u003e\n\u003cp\u003eEach cover features a single-piece design with no separate clip-in retention mechanism.\u003c\/p\u003e\n\u003ch3\u003eBolt-Through Design\u003c\/h3\u003e\n\u003cp\u003eRather than relying on a clip-in installation, the NRW Design VANOS covers utilize a bolt-through retention design using the OEM cam bolts.\u003c\/p\u003e\n\u003cp\u003eThis provides positive mechanical retention while eliminating reliance on an aging plastic cover or aftermarket clip-style design.\u003c\/p\u003e\n\u003cp\u003eInstallation follows the applicable BMW procedure for the camshaft\/VANOS fasteners, including all required factory procedures and specifications.\u003c\/p\u003e\n\u003ch3\u003eDesigned with Rotational Mass in Mind\u003c\/h3\u003e\n\u003cp\u003eMaterial selection and weight were important considerations throughout development.\u003c\/p\u003e\n\u003cp\u003eDespite being manufactured from high-strength 4130 chromoly steel, NRW Design engineered these components to minimize unnecessary mass. The result is an exceptionally lightweight bolt-through VANOS cover designed to add as little additional rotating mass as practical.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for the BMW E9x M3 S65 V8\u003c\/li\u003e\n\u003cli\u003eBolt-through VANOS cover design\u003c\/li\u003e\n\u003cli\u003ePrecision machined from billet 4130 chromoly steel\u003c\/li\u003e\n\u003cli\u003eHigh-strength single-piece construction\u003c\/li\u003e\n\u003cli\u003eReplaces aging factory plastic VANOS covers\u003c\/li\u003e\n\u003cli\u003ePositive mechanical retention\u003c\/li\u003e\n\u003cli\u003eEliminates reliance on a clip-in cover design\u003c\/li\u003e\n\u003cli\u003eEngineered to minimize additional rotational mass\u003c\/li\u003e\n\u003cli\u003eUtilizes the OEM cam bolts\u003c\/li\u003e\n\u003cli\u003eInstallation follows applicable BMW procedures\u003c\/li\u003e\n\u003cli\u003eDesigned as a long-term VANOS cover solution\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured by NRW Design in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation note:\u003c\/strong\u003e Installation requires S65 camshaft timing tools and should only be performed by someone with the appropriate mechanical experience. Follow all applicable BMW procedures and torque specifications.\u003c\/p\u003e\n\u003ch3\u003eProtect Your S65 with a Purpose-Built Solution\u003c\/h3\u003e\n\u003cp\u003eThe S65 remains one of BMW M’s most iconic engines, but these engines are now operating with components that have experienced years of heat cycles, mileage, and age.\u003c\/p\u003e\n\u003cp\u003eThe NRW Design S65 4130 Chromoly Bolt-Through VANOS Covers were engineered to replace the aging factory plastic design with a high-strength, positively retained solution built specifically for the S65 platform.\u003c\/p\u003e\n\u003cp\u003eBillet 4130 Chromoly. Bolt-Through Retention. Engineered for the S65.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured by NRW Design in the USA.\u003c\/p\u003e","brand":"NRW Design","offers":[{"title":"With Bolts","offer_id":67947565318298,"sku":"S65VANOSWB","price":389.95,"currency_code":"USD","in_stock":true},{"title":"Without Bolts","offer_id":67947565351066,"sku":"S65VANOS","price":289.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/7569\/3466\/files\/92E44C83-3A03-4974-A070-26E83FC5BF17.jpg?v=1792818573","url":"https:\/\/apexmotorsportswa.com\/products\/nrw-4130-billet-chromoly-vanos-covers","provider":"Apex Motorsport","version":"1.0","type":"link"}