Well, a buddy and me just installed a New Bassani Cat back on my 1997 Blown Cobra.I,m running stock heasders, SHM off road H pipe and the 2.5 inch cat backs. The sound is UNBELIEVABLE. I dam near got a bonner when it fired up. On the open road, it sounds like something from Nascar. Recommended to any one looking for new cat backs. Amen.