The short block installation kit for 2.5L WRX heads comes with everything you need to install a Crawford Performance short block into your 2004-2007 USDM Impreza WRX STI, 2006+ Impreza WRX, 2005-2008 Legacy (Turbo Models), and 2004-2008 Forester (Turbo Models). While we have found most of these parts to work the best for the reliability, longevity and power potential of the vehicle, Crawford Performance did custom design their own heads studs that ARP now supplies for Crawford Performance and almost every Subaru engine builder in the market today.

If you are in the market for a short block you are going to need an install kit and this is the one of choice, preferred by more engine builders in North America. All parts are brand new, as they should be when installing a short block and designed to handle power levels of up to 700+ horsepower.

Now includes:
- MOTUL 5100 10W40 Break In Oil
- K&N High Performance Oil Fitler