I think the B&B is somewhat deeper at idle, but there is really not a lot of difference between the two at high revs or WOT. I've got a friend with the Roe SC/Bellanger/Corsa setup, and when we dynoed back to back the cars sounded very, very similar--very loudly similar too I might add. [img]/images/graemlins/supergrin.gif[/img] The growl/scream when you rev may sound somewhat ricer-like in a way, but it is so much deeper and louder it's really different. I revved at a 'stang one time and I ran into the guy later at a car show and he said, "Damn man, what does that thing rev to, 10,000 rpm?"