Fits 2015 23 Mustang 2.3L 3" High Flow Down Pipe w High Flow Catalytic 1809 wheels Brand Holley EFI Color Aluminum data acquisition components Brand Holley EFI Color Aluminum Construction Cast Emission Code 3 Engine GM LS1 LS2 LS6 Finish Satin Flange Style EFI Front Height 12 09 8 V 1964 1968 Chevrolet Chevy II U K 8 V 1965 1973 Chevrolet Chevelle U K 8 V 1967 Chevrolet Camaro RS 4 These kits are designed to work with the factory exhaust or after market cat back systems Every BBK Performance Mustang Eco Boost downpipe has been designed as a direct fit and will add increased performance and a more aggressive exhaust sound to your S550 Mustang