P/N 17328 05-09 Mustang GT Stealth EFI Fuel System. For Mustang GT?s with GT500 4-Valve 5.4L Swap. Rated for EFI engines producing up to 1,400 Flywheel HP Forced Induction or 1,900 Flywheel HP Naturally Aspirated. For 2005-2009 Mustang GT?s with engine swap to 5.4L GT500 Supercharged 4V engine and/or equivalent intake. Includes Aeromotive?s HD Fuel Pump Wiring Kit for limited duty racing applications.