P/N 17327 05-09?Mustang GT Stealth EFI Fuel System. For Mustang GT?s with Stock 3-Valve 4.6L Engine. Rated for EFI engines producing up to 1,400 Flywheel HP Forced Induction or 1,900 Flywheel HP Naturally Aspirated. For Mod Motor Mustangs requiring 4.6L 3V GT Fuel Rails and/or equivalent intake. Includes Aeromotive?s Fuel Pump Speed Controller for continuous duty street/strip applications.