I was just wondering has anyone else installed the SS dual dual exhaust on their Z. I just did and I was wondering are the rearmost hangers necessary. It seems pretty tight without them. A buddy of mine told me I might get some vibration without them that I would hear inside the car.

 

i would get those rear hangers

and im guessing you overtightened your clamps on the muffler and the bad thing about that is that one day when u decide to take the clamp off the pipes will be stuck together....i would install the rear clamps and loosen the clamps a bit

just my 2 cents

 

Over tightening the clamps to the point of the pipe starting to crush can make trying to get the pipes apart hell. If you have a choice use stainless steel band clamps, they apply a much more even amount of pressure on the pipe, and prevent crushing it like a u bolt clamp. However these are little more expensive, especially stainless clamps.