I know its not a hard job, and a lot of muffler shops can do it. I also know there is shops in MI that work on BMW, but idk if they have done the mod before.
i simply want someone who has done it before and not going to mess up my brand new m3 i am about to get this week.
So I am willing to pay a good rate along with providing a pizza
for anyone who can help, other wise shop.