There was someone who has had an R56 S moded in the UK I included the thread link below for details;
In the thread is a video of the exhaust in action -- it sounds amazing!
Here is a link to the Video:
http://www.youtube.com/watch?v=-N5aFCEcfe8
if it does not work the link is in the thread near the last post.



http://www.mini2.com/forum/2nd-gen-e...ds-booked.html

 

That sounds incredible and gained 20HP. Not bad at all

 

sounds great 20hp is a lot from an exhaust the flood gates are starting to open now

 

THis almost makes me want to go out and buy a new MCS!

 

We don't know what it gained... no baseline run.

 

I wouldn't be suprised if a straight through 3" system on one of these make that much power. What is the stock exhaust diam.?

-Brian