Totally transformed the car, and made it so much more driveable.
besides the obvious benefits of gaining 80 horses, I no longer need 'S' mode, all my normal driving, mainly urban is done in 'D', and when I need a blast it goes straight in paddle mode. The extra power and low down torque make 'D' perfect for everyday driving
The map itself is very smooth, no noticeable spike you hear of usually associated with Revo, not aggressive at all. Interestingly I had an RS4 for a weekend (beautuful car BTW) and speed wise it felt very similar to mine, however mine definitely had a much greater slug of torque at the bottom / mid range. The RS4 did go on the rev to nearly 9k (& sounded ever so sweet). The S4 would keep up though
The Sps switch works with this map & allows switching between 95/ 98 / stock, immobiliser mode is not available.
I would whole heartedly recommend Revo for the S4, I'm very happy. I know MRC can extract a few more horses (not yet for the FL I believe), but at the moment I'm satisfied. If I ever decide stage 2 then I may well have a chat with MRC but thats at least a year away for me, and I may well just get a RS4 instead
