Perrin 2004-2021 Subaru STI Shifter Detent Kit | PSP-INR-042RD vendor_Alpharex Gains of 40-80whp (depending on

Gains of 40-80whp (depending on Turbo) have been seen by simply bolting the S2 cams in

Track days can be less enjoyable and cut short due to this inconvenience

Large – up to a 36” waist (pants size)

The APR Performance Carbon Fiber Rear Bumper Vents have been designed to help reduce high-pressure air that builds up in the wheel wells and increase the air flow to help transfer away unwanted heat

Perrin 2004-2021 Subaru STI Shifter Detent Kit | PSP-INR-042RD vendor_Alpharex Gains of 40-80whp (depending onFitment Information: Subaru STI 2004 2021 The PERRIN Shifter Detent Kit is an inexpensive upgrade that adds a crisp and solid feel to gear changes in your manual transmission STI. The PERRIN Shifter Detent Kit enhances gear shifting by providing a more defined feel for each gear position, including neutral. This upgrade delivers crisp, satisfying shifts, adding more enjoyment to driving your manual transmission Subaru! The PERRIN Shifter Detent Kit