P/N 17305: 05-09 Mustang GT Stealth A1000 System. For Mustang?GT?s with GT500 4-Valve 5.4L Swap.?Rated for EFI engines producing up to 1,000 Flywheel HP Forced Induction or 1,300 Flywheel HP Naturally Aspirated on gas. For Mod Motor GT Mustangs with 5.4L...