You could talk to Nick at BYT. I know he installed clutches on cobalts. I dont have a clue what his rate is now. He's in the Pocanno's. For me it was like a 3 hour drive from MD. he did my tuning. Definately a great tuner and pretty much can do anything you ask him too.
He's not on the forums anymore but you can find him on facebook. Search Backyard Turbo