Hi Guys!

I have just taken delivery of a 2004 C180K Coupe and would like to increase the performance by a modist amount.

I have read lots of your posts regarding pulley upgrades and other products but I have been told that I cannot simply fit a smaller pulley to the C180K?

Does anybody have any thoughts on the best and most cost effective performance upgrades or does anybody out there have a C180K that has been tuned?

Any thoughts or suggestions that you may have would be much appreciated.