...........i'm on light blues.....(standard head/cams)..mapped buy Ahmed and my car pisses 400bhp on the rollers and at less boost than it makes on the road...(ahmed says its a real 380 though)......all i can say is........if u like ur car then dont change tuner or injector.........every body on here says how good this n that is but cant prove WHY................siemens are a better spray pattern (so easier to map).....but u get the same results.....(apart from idol.......so).............i will never doubt any tuner....but i'll never kiss there arse either...................