PERRIN Differential Lockdown System 2015-2021 Subaru WRX & STI / 2012-2025 Impreza / 2024-2025 Crosstrek PDM_harness-bars you are looking at the

you are looking at the GSC Power-Division Race Balance Shaft

A worn bushing allows excessive camber variation -- the outside rear tire changes angle under cornering load rather than maintaining the aligned value

Corrects lower control arm geometry to reduce nose lift under braking

5" stock turbo outlet pipe which connects to the remainder of the hot side piping

PERRIN Differential Lockdown System 2015-2021 Subaru WRX & STI / 2012-2025 Impreza / 2024-2025 Crosstrek PDM_harness-bars you are looking at theEnhance your Subaru's performance with the PERRIN Rear Differential Lockdown, expertly engineered to increase drivetrain rigidity and deliver sharper, more responsive throttle control.