Nothing.
I Recently Bought My Eagle Talon and here is a list of things Done to It. I am Asking, What kind of problems will I be looking at with these upgrades, Gas Mileage etc. All upgrades were done before me.
300+ HP AWD TURBO H&R Race Springs Koni Yellow Adjustables GReddy Power Extreme 3" Cat-Back 3" Race Pipe Evo 16G Ported and Clipped Walbro 255lph High Pressure Fuel Pump Injen Intake with Extra Filter Blitz Blow Off Valve Tenzo R Strut Bar Autometer: Boost A/F Ratio Apexi Turbo Timer GReddy Profec B Electronic Boost Controller In Dash Police Scanner Radar Detector Alpine TypeR 10' Sub 350X2 Watt Amp Always Mobil1 Full Synthetic Run. Always Turbo Timed Never Raced Pulls Hard Car.
When you boost the psi be sure to make your spark plug gaps smaller.