K&N Drop In Air Filter - 2004-2007 Subaru STi Suspension>Alignment Kits

K&N Drop In Air Filter - 2004-2007 Subaru STi Suspension>Alignment KitsK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your

Unrestricted Supercharger and Larger Diameter Inlet Pipe for Maximized Air Flow

IE: AP sprint kit with whiteline roll center adjusters due to lower control arm to rotor clearance being less than the thickness of the backing plate

Rally Armor presents their premium polyurethane rally mud flaps tailored for the Subaru Impreza WRX and STI

The Go Fast Bits Underdrive Pulley Kit features lightweight aluminum construction

Multi-step heat-treated process

Product color is Lightning Red

Manley Performance Valve Spring and Retainer Kit

Compatible with stock springs

the heat doesn’t have a real means of escaping so it will build right at the source of the turbocharger

5psi 90%DC Turbo = 315

We highly recommend using masking tape on the inlet to prevent scratching till you have the coupler perfectly trimmed

Protect the Engine — Know Your Fuel Pressure