Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Extreme Duty ValvesIdeal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications. XH 432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction. Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance. Optimized Performance: Swirl polished under head areas and fully machined combustion faces
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