Just for arguments sake, if jussa wants to pay for a power run for both cars I'm more than willing to go to amd with him tomorrow, I know the guys there quite well, (I was actually there today having cam belt /water pump and full service), this should give some indication of how rollers are performing, the point I was trying to make is he should take it back to them and let them see if there's a problem first, regardless of power if he's not happy it needs sorting, although I understand that similar cars with similar mods can give different readings ,are we all in agreement that stage2+ should give better results/figures than stage 2??????????,if so there has to be a problem, as I said jussa I'm more than happy to meet you at amd tomorrow if it helps mate.