and later factory exhaust headpipes 65 this header requires the use on hooker ... which will bolt directly to the stock mustang exhaust headpipes 67 header designed ... on right side 77 will not fit 1971-73 mustang/cougar with manual transmission 78 this ... tube chassis pro-stock style cars with strut front end 89 will not fit models with ... this header requires the use of 1969-70 mustang 302 boss or 351 boss frame mount ...