Perrin [15-21 WRX] Black Pulley Cover Shocks and Struts Alignment required after installation for

Alignment required after installation for best performance and tire wear optimization

Designed for aftermarket racing-style steering wheels

TIG welded MAF sensor flange for secure mounting

helping the engine breathe more efficiently for improved throttle response and a more refined turbo spool character

Upgrade your engine’s strength and reliability with the BULL BOOST Performance SOHC Head Stud Kit

Perrin [15-21 WRX] Black Pulley Cover Shocks and Struts Alignment required after installation forAccessorize the top of your engine and the pulleys with the PERRIN Pulley Cover. Choose red or black to accent your engine bay. Add more flavor and a cleaner look to your engine bay with the PERRIN Black Pulley Cover. This pulley cover is a direct replacement of the factory plastic pulley cover that is functional, but bland in appearance. The PERRIN unit is constructed from high grade aluminumand has been powder coated a wrinkle black finish to be