5150 Autosport Valve Springs for BMW F82 M4 S55 3.0L

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Ferrea High Performance Valve Spring Kit for BMW N55/S55
Ferrea High Performance Valve Spring Kit for BMW N55/S55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
5150 Autosport - Corporate Logo
T#:23416526
Part#: FER-HPVSK-N55
Ships in 3 Business Days
$ 1,049.99 USD
Free Shipping on orders $49 and up
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$ 1,049.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Maximize your N55 or S55 engine's performance with Ferrea Valve Springs and Retainers, precision components crafted from chromoly alloy. These springs undergo special thermal treatment, ensuring exceptional durability even in extreme racing conditions. Addressing issues like valve binding, breakage, and float, Ferrea valve springs are meticulously heat-treated and stress-relieved, providing stability for high-lift and high-RPM racing engines while minimizing load loss. Precision CNC machined titanium retainers offer superior strength and stability. Ferrea's Spring Seat Locators, made from 4140 chromoly alloy, guarantee precise tolerances and a flat, parallel spring pad with a hard Nitride surface treatment for exceptional toughness and anti-wear characteristics. Please note that installation requires the expertise of an engine builder.
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