This is weird. I put one on mine two months ago. I think it's louder than the silverline on my 12V, and way raspier (CR causing this I think) The only fitment issue I had was the rod on the downpipe would not let the pipe mate to the turbo. I tweaked on it just a bit and all was good. Mine was rushed from the factory (genos shipped it directly from silverline) and I think maybe the flutes in the muffler are backwards. . It's that loud.
I suggest buying a set of band clamps.
Looks damn sexy though.