All I can say is WOW!!!!!
Had my Cooper S booked in to O'Leary's Garage in Ballincollig today to get my 210BHP conversion done

Truly Excellent service from start to finish!
I got the supercharger pulley replaced with a 15% reduced pulley and a Custom Remap of the car's ECU.
The difference is Amazing!!!

And the bonus of much more gorgeous supercharger whine! "eeeeeeeeeeeeeeeeeeeee"

So my 'JCW' badges now match the performance

I've only had a couple of small drives in it so far but there is a big difference and lots more torque too. The Remap has made the car alot easier to drive and is way smoother too

Looking forward to the next Mini Run now!