I have a Astra Coupe Turbo running a Phase 2 conversion done by Regal. I found the increace in power over the standard car to be well worth it, and am now considering a phase 3 conversion and a new exhaust system. Has anyone upgraded from phase 2 to 3? If so, what were the performance gains like? I am looking to get a bit more power from 3rd to 5th gears, as it can feel a bit flat under hard acceleration. Can anyone suggest any other performance mods I have overlooked? Any help or advice greatly appreciated!