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Cylinder head requires machining for clearance of high lift cam lobes
Offset inlet design eases installation
Knock control using digital filter technology
Thread x Hex x Reach
The COBB catback exhaust for the WRX & STI does not deviate from the factory emissions equipment and conforms to the SAE dictated 95-decibel exhaust noise level limit enforced by California
Evo 8/9 Fuel Rail -6AN Fittings ester Cylinder head requires machining forEvo 8 9 Fuel rail with 6AN end fittings both sides. Includes everything needed for use with Fuel Injector Clinic IS126 series injectors or factory injector style. Anodized sleek matte finish available in Black, Dark Blue, Dark Red or Silver. Fuel Injector Clinic fuel rails are constructed of high quality aluminum extrusion machined to the tightest tolerances and anodized inside and out to provide a beautiful protective finish. All Fuel Injector Clinic
