P/N 17321: 10-17 Mustang GT Stealth EFI Fuel System: For Late Model GT?s with GT500 4-V 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 2010-2017 Mustang GT Chassis...