Had the oppportunity to work on a beautiful 2010 WRX that came to use with a Stage2 with upgraded top mount setup already installed and tuned elswhere. After an adjustment period, it was decided that more power was in order. Here is the complete rundown of the mod list. Cobb AP (ProTuned by Sharif@Forged) Perrin FMIC Perrin Intake Deatschwerks 750cc Injectors Grimmspeed Phenolic Spacers Grimmspeed Air/Oil Separator Perrin EBCS AMR CXR500 Turbo Walbro 255lph Fuel Pump SPEC Stage 2+ Clutch I stock WRX puts down less than 200whp on our Dyno Dynamics bone stock. He left with 325whp which makes this it the highest powered stock engine WRX we've tuned here. Enjoy..93 octane at 19.7psi peak taper to 17psi