I just recently (few days ago) had this X-pipe installed along with a Remus race rear section. Car is very loud now, especially on cold starts. Very deep sounding exhaust at low revs, but starts screaming after about 3500-4000rpm, very F1 like. As well, no CEL.
Quick rev from inside the car:
http://s167.photobucket.com/user/mac...80c0d.mp4.html
Some revving from outside:
http://s167.photobucket.com/user/mac...b287f.mp4.html
I will get some fly by videos soon!