i've been running 1.25 bar for ten months and it han't missed a beat all i had to do was the usual to safe gaurd the engine ie fuel pump, adj reg and fuel controller. The fuelling is the critical part of the set up. I also have the other mods mentioned ie front mount, plugs,hybrid turbo etc,etc. i thought the difference in performance between 1 bar and 1.2 bar was amazing it just makes me want more boost :twisted: :twisted: :twisted: