Purchased new exhaust down pipe , pre-cat to silencer box, but having trouble getting the right gasket to go between pipe and silencer box. The one that I ordered off e-bay was to small when it turned up so I went to euro car parts and the one they had in stock was also to small. The ones that are shown for the MR2 MKIII have a pipe diameter of 1 3/4 inches where as mine is ever so slightly over 2 inches or 43 mm to 53mm. Does anybody know if the import model has a bigger bore system as the old one I took off was the same size?