GSC Power-Division Super Alloy Exhaust Valve Set of 8-29mm STD (gsc2121-8) 1720 Increases horsepower and torque by

Increases horsepower and torque by 14 whp and 21 ft-lbs

have newly adopted molded urethane to improve comfort and durability for long driving

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Peak Rpm Memory Recall Provides Quick Review Of The Highest Rpm Achieved Since The Last Clear

GSC Power-Division Super Alloy Exhaust Valve Set of 8-29mm STD (gsc2121-8) 1720 Increases horsepower and torque byGSC Power Division Super Alloy Exhaust Valves for FA20 FRS BRZ are for those running high horsepower, high EGT set ups that need a valve that will last in 2000 F conditions. The Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity, especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance, and performance are engineered into every valve. Under