This flange will fit 2.00"and 2.25" exhaust pipe size. These flanges are not oversized units that our competitors sell. Oversized flanges will cause clearance problems with starters,etc. these are the strongest and best fitting flanges in the market. Some of our competitors provide easy-to-break aluminum flanges in the name of "cost reduction". Photo #1 and # 2 are bare castings, photo's #3 and #4 have the Gray Ceramic coating.
These flanges are for the D-Port Factory headers for the 64-67 GTO