How do i convert from 2" exhaust manifold piping to 2.5" catback exhaust piping because the reducers i find domt have flanges so i cant figure out how to bolt them together... please can anyone help me before i buy the parts??? Thank you

 

get a reducer and flange welded in, or if the flanges will bolt together use a 2.5" gasket, and the smaller pipe will just blow into the larger pipe, and there should be no problems with that, IF the flange on the 2" is bigger enough to seal...

 

I wont know until i buy, and if i buy em n they dont fit then i must find a welder lol... thanks for the info...