The rear portion of my Calmini muffler broke internally allowing the tailpipe to rotate w/in the muffler causing quite a bit of squeaking. After telling the shop that it was only a year old, I was encouraged to send it back to Calmini because a broken neck (as I was told) in a muffler is a defect. Calmini's response to me was quite interesting. I was told that the muffler was a generic $30 retail turbo muffler that was available anywhere. When I told them that a SC kit ran $270 from them they told me that "Its a value packed kit. . ." Sure $30 for a "generic turbo muffler" and $240 for pipe, hangers, and a tip. All I can say is that I'm not pleased w/ their product and for anyone considering Calmini Exhausts, visit a muffler shop and invest in a Flowmaster 40 Series. Sorry, had to vent.