Header fitment: this Kooks GREEN catted Y-pipe will only fit Kooks 2009 to 2010 F150 & SVT Raptor 5.4L Long Tube Headers.
48-State Legal Catalytic Converters: the Kooks "GREEN" cats are EPA-certified and will pass emissions testing in any state that has not adopted CARB standards. This y-pipe is not street-legal for use in California, New York, or any other state that has adopted CARB pollution guidelines.
Old Kooks Part Number: 6050-05-F150-GREEN.