Figure out who the owner of a Midas in your area is and then stalk him, learn his daily routine. After you have that down, have a friend try to run him over, only to have you save him at the last possible second. He will be grateful. When he asks what he can do to repay you, mention "Well, I don't really need anything, I'm just glad I could help" Then hop in your car and start it up. When he hears your missing exhaust, he'll probably do anything you want!
