Originally Posted by ECOSNIGE
measure the outlet flange mine was 84mm x 74 so its massive thats a usa t4 flange and the uk t4 flange is just normal fit on a 2wd manifold maybe if u have the larger size u could order a new exhaust housing a smaller one?
US and UK T4 flanges are the same, just most things people call T4s in the UK (ie RS500 T4s) are just T3/4s.
RS500 T4s use T3 flanges.