Perrin [22-23 BRZ, 22-23 GR8] Axle Back Exhaust SS - Single Side Exit w/Helmholtz Chamber | PSP-EXT-368BR Engine Management System Subaru STI (2004–2021)

Subaru STI (2004–2021)

these coilovers provide a perfect balance of performance and practicality — ideal for the Legacy owner who wants both form and function

OE Direct Replacement: The Rear Lower Arm is specifically designed as an OE direct replacement

Adjustable Rear Toe Arms Compatible with Toyota Venza Hybrid (XU80) 2021 2022 2023 2024 2025 All trims

Perrin [22-23 BRZ, 22-23 GR8] Axle Back Exhaust SS - Single Side Exit w/Helmholtz Chamber | PSP-EXT-368BR Engine Management System Subaru STI (2004–2021)SOUNDOur resonated system is designed to have a mellow, pleasing rumble at lower RPMs and light throttle. When driving vigorously, the system transitions into an aggressive tone that every sporty car needs. NO DRONE ZONEThe PERRIN exhaust features a frequency reducing Helmholtz resonator to combat the naturally occurring resonance the BRZ exhaust produces. This unique, engineered chamber, reduces the low RPM droning and booming without adding any