I'll soon be looking at getting an exhaust for my fully rebuilt 18R-G once the celica is ready to be on the road. Just wanting to know your opinions and suggestions on the size I should get. The old man is a mechanic and wants to go a 2.5" system, but from some threads I've read on here that may be a touch too big?
I have a large set of extractors that look like they went into a 2.25" pipe, but they are fat enough to easily weld them up to a 2.5" pipe.