Ferrea High Performance Oversized Valve Kit – S58

Product Details

Elevate the performance of your S58 engine with Ferrea’s valve kit. Renowned for their unmatched reliability and durability in extreme conditions. Crafted from aerospace-grade alloys, including the robust EV8-Z18, these valves undergo a meticulous two-step slow forging process to ensure optimal grain flow and minimize material structure damage.

Maintaining molecular integrity is paramount, achieved through a rigorous 48-hour heat treatment and stress-relieving process. The valves boast avionics-quality hard chrome and a specially applied hard tip for enhanced performance. Featuring a standard size of 30.1mm for intake and 28.5mm for exhaust, their triple groove design ensures top-notch efficiency.

Note that these valves require additional machining due to their overall larger diameter.

The kit includes:

• 12x Intake Valves
• 12x Exhaust Valves

Designed to seamlessly work with factory valve locks, Ferrea’s valves are tailored to elevate your BMW S58 engine’s performance to new heights.