BMW N55 / S55 Valves by Ferrea

Ferrea Competition Plus Valves are celebrated for their extreme duty performance and industry-leading reliability. Designed specifically for the BMW N55 and S55 engines, these valves are crafted from aerospace-grade alloys like EV8-Z18, delivering superior tensile strength and exceptional durability for high-performance applications. Ferrea's two-step slow forging process ensures optimal grain flow and minimizes internal stress, providing unmatched durability for your engine. Each valve undergoes a rigorous 48-hour heat treatment and stress-relief process, ensuring optimal molecular integrity. Finished with avionics-grade hard chrome plating and featuring a specially hardened tip, these valves are engineered to withstand the extreme demands of performance use. Upgrade your BMW N55 or S55 engine with the Ferrea Valve Kit for greater strength, improved heat resistance, and outstanding reliability—perfect for both street performance and motorsport builds. Key Features: Aerospace-grade alloy construction for exceptional strength and longevity. Slow forging process for optimized grain flow and reduced material stress. Avionics-quality hard chrome plating for enhanced wear and heat resistance. Replaces BMW part # 11347847033 and # 11347847034.  Standard Size is 32mm Intake / 28mm Exhaust Kit Contents:  (12) Intake Valves (12) Exhaust Valves  Triple Groove Valve Design  Will work with factory valve locks " Valve Keepers" BMW N55 Applications: 1 Series 2010-2013     E82/E88     135i 2012-2016     F20/F21     M135i 2 Series 2014-2016     F22/F23     M235i 2016-2018     F87     M2 3 Series 2010-2015     E90/E91/E92/E93     335i 2012-2015     F30/F31/F34     335i 2015-2016     F30/F31     340i 4 Series 2013-2016     F32/F33/F36     435i 2016     F32/F33/F36     440i 5 Series 2010-2016     F10/F11     535i 2010-2017     F07     535i GT 6 Series 2011-2018     F12/F13/F06     640i Gran Coupe 7 Series 2012-2015     F01/F02     740i / 740Li X1 Series 2013-2015     E84     X1 xDrive35i X3 Series 2011-2017     F25     X3 xDrive35i X4 Series 2014-2017     F26     X4 xDrive35i 2016-2017     F26     X4 M40i X5 Series 2011-2018     E70/F15     X5 xDrive35i X6 Series 2011-2019     E71/F16     X6 xDrive35i ALPINA N55 Applications: B3 Series 2013-2018     F30/F31     B3 Bi-Turbo B4 Series 2014-2019     F32/F33     B4 Bi-Turbo BMW S55 Applications: 2 Series 2018-2020     F87     M2 Competition 3 Series 2012-2018     F80     M3 4 Series 2014-2020     F82     M4 2014-2020     F83     M4