GSC Power Division Valve Spring Kit for Subaru FA20 WRX/BRZ/FRS Dual Cylindrical

GSC Power Division Valve Spring Kit for Subaru FA20 (WRX / BRZ / FRS) — Dual Cylindrical Brand: GSC Power Division Upgrade valve control and rev response with the GSC Power Division Dual Cylindrical Valve Spring Kit engineered specifically for Subaru FA20 engines used in WRX, BRZ, and FRS models. Designed for performance builds and high-RPM reliability, this kit delivers consistent spring pressure and improved valve stability under heavy load. Key Features Dual cylindrical design: Optimized for balanced coil dynamics and even load distribution. High-strength materials: Heat-treated steel for fatigue resistance and long service life. Improved RPM capability: Reduces valve float, enabling higher safe engine speeds. Direct fit: Manufactured to OEM dimensions for straightforward installation on FA20 heads. Ideal for modified builds: Suited to forced induction, ported heads, and cam upgrades. Benefits Enhanced throttle response and engine stability at high RPM. Consistent seat pressure for improved valve sealing and combustion efficiency. Durable construction lowers maintenance frequency for track and street use. Choose GSC Power Division for precision-engineered valve springs that support aggressive tuning and reliable performance in Subaru FA20 applications.