I got my system installed on my '06 GT 'vert this morning. Had a little trouble getting the old driver's side muff off-finally loosened the fwd hanger bracket and got it off. The Corsas went on very easily. My only problem is the passenger side tip hangs an inch or so low. Haven't gotten it right yet- the driver's side is positioned perfect. The instructions called for tightening the muffler clamps to 45 ft/lbs, haven't gotten the torque that high yet, they don't seem to be tightening up that much yet.
The sound is very nice, not too loud but just about right. I'm a tad discouraged about not being able to get the alignment just perfect but I will.
These mufflers appear to be very high quality pieces. I plan to call Corsa's tech help line Monday for any suggestions on solving the minor alignment problem.