GSC P-D 2014+ BRZ/FRS FA20 Exhaust Valve Set +1mm (30mm) 23-8N Stainless Alloy (GSC2133-8)

GSC Power-Division is a leading manufacturer of high-performance valvetrain components for turbocharged and high-performance engines. Specializing in camshafts, valve springs, and retainers, GSC products are engineered to improve power, reliability, and efficiency. Trusted by enthusiasts and professionals worldwide, GSC Power-Division delivers cutting-edge solutions for both street and motorsport applications.