I have a 99 4door, blazer. I've seen some others like mine (the newer body styles) that have dual exhaust. Unfortionatly they were on the road so I couldn't stop and look/talk to the people. I talked to a muffler guy...he says he can do it WITHOUT losing the spare tire. I was wondering if anyone had experience with dualing out there blazer. If so do you have a picture? Anyway just let me know.