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
B5 Series
2010-2016 F10 B5 Bi-Turbo
B6 Series
2011-2018 F12/F13/F06 B6 Bi-Turbo Gran Coupe
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