Midland/Saginaw area. Dougs muffler down here does a good job but I don't know any shops up there.When I needed flanges put on the Corsa Midpipe for my car, I went to the Mr. Muffler in Washington. It's around 32 mile and Van ****. Told the guy what I wanted, he laid out all the parts and it didn't take long for them to yank the stock sections and put in the Corsa.
Got the place as a referral from a local G8 couple who are quite particular about their White Hot GXP. The guy did good work too, he was bothered he couldn't get my one exhaust tip to be perfectly centered without doing some serious work. I thought it looked close enough though.
What is "mid michigan" though?