Hooker continues to set the standard of performance with the Blackheart line of engine swap system components. We are proud to offer these 304SS long tube Coyote engine swap headers for 1979-1993 Ford Mustangs. These headers feature 2" primary tubes with 3" formed merge collectors and are engineered to offer premium fitment on vehicles equipped with an AJE MU-40-UM* or Team Z TZM-KM-SWAP4* engine K-member. *Installation requires the use of Hooker Blackheart 71221026HKR (for AJE MU-40-UM K-member) or 71221027HKR (for Team Z TZM-KM-Swap K-member) engine mounting brackets.