Well I went and did it, I put an old 2001 Z06 H pipe I had laying around on my 2002 Z. The jingle is gone and the Z06 "Growl" is PERFECT. All I did was cut the H pipe and clamped on the 01 H pipe. The only expense was taking the old pipe to the muffler shop to have the ends of the pipe expanded in order to facilitate the "slip fit". I have heard many complaining that an X pipe is too quiet. IMO the use of the 01 pipe, which has a true 2.5 inch hole is JUST RIGHT.