i have a 53reg 190 quattro sport (70000miles) i am a little disappointed with the performance! its very quiet and smooth but has no real urgency at all, just seems to pull the same all the way through the rev range! no 'turbo' surge!! i am thinking of a remap and revo are at the top of the list at the mo because they are close to me but do you have any recommendations for any other companies? what did you find was the power and torque gains? was it worth it? any good mods to help it get a bit of grunt back? or are these a big slow bus?