2008-2014 Subaru STI

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

The PERRIN Electronic Boost Control Solenoid (EBCS) Pro is designed to control today's high performance turbochargers with its ultra-fast response ...

Improve a known failure point with a set of high grade PERRIN Endlinks! WHY YOU NEED THESE ENDLINKS OEM steel endlinks are a small, flimsy and can ...

Add a PERRIN Adjustable Rear Swaybar to your WRX & STI. Adding a swaybar is the easiest way to improve and fine-tune the handling of your vehi...

Add a PERRIN Adjustable Rear Swaybar to your WRX & STI. Adding a swaybar is the easiest way to improve and fine-tune the handling of your vehi...

Add a PERRIN Adjustable Rear Swaybar to your WRX & STI. Adding a swaybar is the easiest way to improve and fine-tune the handling of your vehi...

Add a PERRIN Adjustable Rear Swaybar to your WRX & STI. Adding a swaybar is the easiest way to improve and fine-tune the handling of your vehi...

Perrin Engine Mount Kit 2002-2021 WRX/STI OVERVIEW PERRIN Engine Mounts reduce motor movements, efficiently transmit motor power and give drivers ...

WHY YOU WANT THIS In racing conditions engine oil temperature skyrockets. This causes decreased engine performance and reduces the oil's ability to...

PERRIN Wheel Spacers move your wheels and tires outward for a more flush fitment. Designed for vehicles with 5x114.3 & 5x100 wheel patterns. Fo...

PERRIN Wheel Spacers move your wheels and tires outward for a more flush fitment and the perfect stance. Designed for vehicles with a 5x114.3 wheel...

Improve a known failure point with a set of high grade PERRIN Endlinks! WHY YOU NEED THESE ENDLINKS OEM steel endlinks are a small, flimsy and can ...

Adjustable relief pressure and flow control makes fine-tuning on the fly simple and quick with the PERRIN BOV/BPV. HIGH FLOW With large 1.225" inle...

The PERRIN High Flow Washable Replacement Air Filter is the last filter you will ever need to buy. Not only is it washable, but it will increase ho...

Don't leave your turbo uncovered! Protect your intercooler from radiant heat from your turbo with the PERRIN Turbo Heat Shield! Design The PERRI...

Dress up your engine bay while preventing leaks and spills from your master cylinder reservoir with the PERRIN Brake Reservoir Cozy.  Easy Installa...

COMPATIBILITY 2015+ WRX 2004-2021 STI

The PERRIN Turbo Inlet Hose has a smooth interior and larger diameter than the OEM hose, increasing airflow. Removing OEM pleats boosts horsepower,...