She's only a 2.0l and I believe the gain is 13hp (no idea what the torque is) for my engine (M50B20TU). Not sure if I'll even notice it although she zips along acceptably now since a reset of the adaptive tranny. I only want a little more oomph...local Bimmer guy says it's pretty much already engineered to it's max, don't bother...thoughts?