10" is way too tall. It will not fit behind the bumper. If you don't have an upgreaded turbo, you will lose power.
Edit- I got my greddy fmic for $50 more than that
HERE.
BE WARNED: IT IS A COMPLETE PAIN TO INSTALL. There are no instructions. You have to cut half of the bumper reinforcement and parts of the bumper. If you have a secondary air pump, it has to be relocated.