Description
Proven reliable in high-horsepower and high-boost applications
Engineered to replace BMW part number #11248623418
E82 / E88 135i N54
Classic Black Hoodie with screen printed design on front featuring 5150 AutoSport logo
Precision engineered with computer-aided design
BMW N63 Valve Spring Kit by Ferrea 122-4000 Proven reliable in high-horsepower andThe Ferrea Valve Spring Kit for BMW N63 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
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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