2015-2021 Subaru STI

The PERRIN Radiator Shroud caps the top of the radiator for a sleek, clean, and accented new look. DESIGN Dress up the top of your radiator with t...

The PERRIN Radiator Shroud caps the top of the radiator for a sleek, clean, and accented new look. DESIGN Dress up the top of your radiator with t...

The PERRIN Radiator Shroud caps the top of the radiator for a sleek, clean, and accented new look. DESIGN Dress up the top of your radiator with t...

Add an aggressive aesthetic and, in some applications, increase downforce with the PERRIN Gurney Flap. INCREASE DOWNFORCE AND PERFORMANCE After se...

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

Replace your ugly OEM plastic coolant overflow tank with a sleek, metal PERRIN Coolant Overflow Tank! COMPACT DESIGN The PERRIN Coolant Overflow T...

Replace your ugly OEM plastic coolant overflow tank with a sleek, metal PERRIN Coolant Overflow Tank! COMPACT DESIGN The PERRIN Coolant Overflow T...

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...

The OEM Subaru pitch stop brackets fail over time. Help prevent this failure with the PERRIN Pitch Stop Brace.  THE PROBLEM WITH THE OEM PITCH STO...

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...

Not many enthusiasts are aware that OE and more importantly aftermarket sway bar effectiveness can be hindered by worn or inadequate mounts, drop l...

Whiteline's Anti Geometry Kit replaces the front control arm rear vertically mounted bushing and featuring low compliance synthetic elastomer with ...

Whiteline's 'MOTORSPORT ONLY' Anti Geometry Kit replaces the front control arm rear vertically mounted bushing and features lightweight aluminium h...

Heavy duty control arms provides on car adjustability of camber alignment. This results in improved traction, increased cornering grip and better t...

The AMS Performance WRX/STI Carbon Fiber Shift Knob was designed to extend the length of the shifter which aids in shifting throw and keeps the kno...

PERRIN Wheel Spacers move your wheels and tires outwards so they are more flush with the fender--instantly give your vehicle the perfect stance. Fo...