2008-2014 STI Drivetrain

Reduce drivetrain shudder under hard acceleration by installing a PERRIN Pitch Stop Mount. Subarus with power and drivetrain upgrades will need PER...

The ACT Xtreme Duty Performance Street Disc Clutch Kit is perfect for those of you with moderate bolt-ons and needs a clutch that is strong enough ...

This component is the Cusco Power Brace Power Steering Rack. This is a stronger and redesigned replacement of the OEM unit to reinforce the chassis...

This kit is specifically designed for single mass flywheel (SMF) vehicles, replacing the original dual mass flywheel (DMF) to enhance performance. ...

The PERRIN Rear Shifter Bushing removes the soft rubber bushing on the back of the shifter rod. This vital connection point joins the shifter mecha...

Perrin 04-21 Subaru WRX STI Full Drivetrain Kit comprises a pitch stop mount, engine mount, and transmission mount, eliminating drivetrain slop and...

Upgrade your STI reverse lockout lever with a the PERRIN smooth glide reverse lockout lever.The PERRIN Performance reverse lock out lever combines ...

PERRIN Rear shifter bushings help eliminate any loose and sloppy feel during gear changes! Give your shifter a feeling of precision not found with ...

This is ACT's new Mod Twin 225 HD Sprung Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggr...

This is the ACT Heavy Duty Sprung 4-Puck Disc Clutch Kit. This particular clutch kit has been designed to sustain substantial increases in power an...

This is ACT's new Mod Twin 225 XX Rigid Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggre...

This is ACT's new Mod Twin 225 XX Sprung Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggr...

This is ACT's new Mod Twin 225 XT Rigid Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggre...

This is ACT's new Mod Twin 225 XT Sprung Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggr...

This is ACT's new Mod Twin 225 HD Rigid Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggre...

This clutch kit is perfect for those of you with moderate bolt-ons, and need a clutch that is strong enough to handle the power. This clutch kit fe...

This is the ACT Heavy-Duty M/Race Rigid 6-Pad Disc Clutch Kit. This is a great clutch kit for those with vehicles built for high-horsepower street ...

The Exedy Stage 4 Heavy Duty Twin Metallic Disc Clutch Kit is ideal for those who are making big horsepower numbers, or for those who participat...

Here, you're looking at the ACT Heavy Duty 6 Pad Clutch Kit for the 2004-2021 STI. The ACT Heavy-Duty M/Race Rigid 6-Pad Disc Clutch Kit is a great...