Ferrea Competition Plus 37mm 1mm Oversize Intake Valve Subaru EJ25 STI 2004-2021 (QTY 8) Vehicle Model_Talon How much performance

How much performance

2007-2013 MazdaSpeed 3

Trailing Arm Lower Front Bushing

Stronger durability for forced induction or aggressive NA builds

Hardware provided as needed

Ferrea Competition Plus 37mm 1mm Oversize Intake Valve Subaru EJ25 STI 2004-2021 (QTY 8) Vehicle Model_Talon How much performancePart #: F1524P Subaru STi EJ25 Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. We, at Ferrea, are dedicated to providing the absolute best product on the market. Our extensive R & D programs provide tehcnological gains, which are implemented in each of our competiton plus valves. They are engineered for higt rpm, high horsepower racing engines, and are chose by many top NASCAR, Drag, and Oval