2nd Gen R56 Cooper S Swapped out my 3" exhaust

So I swapped out my 3" Back exhaust for the full JCW exhaust yesterday. Holy crap the car is quiet now! I did seem to loose about 1-2mpg though. I am not sure if that is because Mini just did a computer update on the car at the same time. I should have left the 3" exhaust on for a week or so to see if the update had done it.
Guess I will need to send Jan a new file to start with for my tune. :frown5:

If anyone wanted to know the JCW exhaust Part # 18307587363 does not come engraved with JCW logo. It does look good though!

 

It was an Alta catback with a custom Stainless 3" mid pipe from the down pipe to the Alta.

 

[ame=http://www.youtube.com/watch?v=08XMe6skfYM]YouTube - ‪P1030298.MOV‬‏[/ame]