Completely agree withyou hear,
I had a 15% pulley installed with a 2% oversized crank pully,
JCW Exhaust and Janspeed manifold, NGK Plugs.
3 weeks later i then had a
JCW Remap installed and TBH this felt like the biggest increase from all but without the other
MOD's installed i doubt this would be, i guess it changed all the fueling etc to suit the
MOD's on the car and then the car took full advantage of everything at once! The remap was a
JCW tweak from a friend who runs with the MINI Challenge cars.
