Provide increased airflow to your WRX or STI with the Mishimoto Subaru WRX/STI Performance Air Intake. Mishimoto designed this intake to be at non-restrictive as possible, featuring a straight 2.75" short-ram intake pipe designed with maximum airflow in mind. Engineered to fit on either your stock or Mishimoto turbo inlet tube, this intake is also compatible with most aftermarket front-mount intercooler kits. Due to the size of the intake pipe, a re-tune of your vehicle's ECU is necessary to keep your engine running safe and extracting the most horsepower from the added airflow. The intake pipe also features a CNC air diverter to provide consistent airflow readings to the MAF sensor, making re-tuning quick and easy. The intake pipe is available in a polished finish to accent any engine bay. A 2.75" diameter Mishimoto high-flow air filter is also included, specially designed for the small engine bay of the WRX/STI and features a built-in velocity stack for maximum flow. The intake is designed to re-use the stock intake duct to provide fresh outside air to the filter. The Mishimoto Subaru WRX/STI Performance Air Intake comes with all of the necessary clamps, couplers, and hardware for an easy install. The Mishimoto Performance Air Intake will give your Subaru WRX or STI a highly aggressive intake tone under acceleration, and it includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.