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tuning is recommended after installation
This Perrin Performance shift knob is engineered for the 2022-2026 BRZ and GR86 automatic transmissions and features a heavyweight 1
contributing to a more responsive and durable driving experience
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Grimmspeed V2 Bypass Valve Red 2002-2007 WRX / 2004-2021 STI GROUP_Drivetrain tuning is recommended after installationRedesigned from the ground up, this valve from Grimmspeed addresses the limitations of the previous version, improving manufacturability, performance, and reliability while maintaining the high quality look and feel GrimmSpeed is known for. Whats New in Version 2? Redesigned internal piston to eliminate potential failure points from V1 Optimized spring tension for superior response across all operating conditions Updated main body design for a cleaner
