Competition Plus Exhaust Valve Suit Subaru WRX STI 2004-08 33mm Head Dia, 5.96mm Stem Dia, 104.75mm O.A.L, 3.5mm TipLength

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 product best on the market. They are engineered for high rpm, high horsepower racing engines, and are chosen by many top Drag, Oval and Sprint car racing teams.