Hey Guys,
I'm having the OEM exhaust mod done Tuesday, and I'm curious what the best X Pipe, or Test Pipe is to add to this setup, or what the real preference is. Do most people leave the rest stock? Or what do you add?
I was reading the build on Ultimate Klasse for Sals car, And he has the primary cats deleted and replaced with ACM test pipes, can anyone explain this better? I trust that with all the tasteful mods on this car, thats a nice route to go.. however, I'm fairly unfamiliar with the exhaust on the M3.
Anyone unfamiliar with that is this car below, and you can check the feature out.