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this header system is optimized for both street and track applications
Odd Fire & 2-Stroke Engines
0) 2003-2007
It’s designed to simplify the process
Designed for 210 mm / 215 mm - Found in E36 (Euro) M3 3
BMW S63 Valve Spring Kit by Ferrea 11247624615 this header system is optimizedThe Ferrea Valve Spring Kit for BMW S63 engines is engineered for superior durability and performance under extreme conditions. This kit replaces BMW part numbers 11340039494, 11340054492, 11347578825, 11347572451, 11347504271, 11347614134, and 11340150843. Factory valve springs can struggle to meet the demands of high boost, aggressive cam profiles, and sustained high RPM, leading to valve float and potential engine failure. Ferrea valve springs are
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![Nidoqueen (22/144) [Skyridge] Metal[x2]](https://cdn.shopify.com/s/files/1/0259/7257/2239/products/9f0bd942-fb2e-429c-92a7-1d9150ffd88e.png?v=1696317484)
