I have one, but i agree that its semi-not needed. Rich from precision tuning (not the dyno place........precision tuning in brick,nj......very well known subaru experts) told me that you shouldnt need to let your turbo "relax" for more than 15-20sec even after hard driving, as the oil drains from the turbo very quickly. So you can just sit in your car for an extra 15 seconds and save some money. I def agree with the rear sway bar! Get some rear endlinks too, it stiffens up the WRX amazingly!
