I was talking form experience with the chips i've had to run greys and yes they were shit BUT why would you bother running a Small T3 with greys as said the turbo will not produce the air required to run the injectors to there full potential waste of money cos you will only want more in the end

My advice is choose a power level and have the car mapped to that,I myself as many others have gone throu loads of variations of chips turbos etc but now have learnt to stick with one tuner and go with there recomendations it will save time and money

Paul