found this on youtube. are you a forum member here? i wanna know your set up.
http://www.youtube.com/watch?feature...&v=c33wnxuxAKg

 

Can that really be just cat delete? Sounds like a header car.

 

Sounds like complete straight pipes (No X pipe) usually when you get off the throttle at high rpms with the straight pipe it sounds raspier like the one in the video.
I don't know if its primary cat delete also the 2ndary cats and resonators are definitely straight piped.
Sounds very similar to my car when I had it completely straight piped, here is a video of my previous setup.
http://www.youtube.com/watch?v=EAMFX...el_video_title

 

Sounds like Jeffield's car who is completely de-catted with stock manifolds.

 

sounds like any other car with headers and cat deletes to me

 

+1 I think Chubbs has a similar setup on his C63. You might want to ask him

 

Your car sounds great. What set up do you have now?

 

sounds great.

 

I bet the neighbors appreciate that on a Sunday morning

Jim