Mishimoto Subaru 08-15 WRX STi Top-Mount Intercooler Kit - Powder Coated Silver & Black Hoses

If you're looking to keep intake air temperatures down on your 2008-2015 Subaru Impreza WRX STI, whether it's stock or has some modifications, this Mishimoto top-mount intercooler kit is a solid solution. Mishimoto spent a lot of time designing and testing this intercooler to make sure it performs well on the street and on the track.

This intercooler features a dense bar-and-plate core that's 3.75 inches thick and has a total volume of 584 cubic inches, which helps optimize heat transfer. It's built with durable cast aluminum end tanks that are TIG-welded to the core. This design is capable of supporting vehicles making up to 400 horsepower at the wheels. In testing on a stock vehicle, it showed a 10-degree Fahrenheit drop in intake air temperature and a small but notable gain of 5 horsepower and 7 pound-feet of torque. The installation is straightforward, doesn't require any modifications to the stock A/C line, and can typically be done in under 30 minutes.

This kit comes with everything you need to get it installed, including new Y-pipe gaskets, a new BPV gasket, a silicone PCV hose, and a silicone throttle-body coupler. These included parts mean you won't have to hunt for extra supplies. The intercooler itself is finished in a durable powder coat, available in Stealth Black or Sleek Silver, and it comes with Mishimoto's Lifetime Warranty.