Two issues. First the stock piece will not fit with the new muffler and the 3" pipe it is attached to, that is why they removed it fr to start with. I overheard him tell an underling that part had to come off. The next morning I looked under the car and of course it was not there nor could it fit. I think he can fab a piece to go under the pipe and function decently. So even if he found the part this weekend he could not put it back on. I should not have been so trusting. I'll have another shop make a brace to fit as is now if I have to. The book I referred to reading about folks like this guy is called The Holy Bible. I used to idolize my cars and when the SC does not work for whatever reason I don't care for the SLK so I still enjoy a car with some power. The exhaust I chose worked and I am surprised I can actually feel it. This is with the rear cats being gutted already or so it seems. I doubt I will use anything of the stock parts but the stock AMG muffler tips and that muffler and resonator are HEAVY! Just think of times you don't have your health. The car loses it's appeal then so I try for what has true meaning and those things cannot be bought. Mark