hay mate good luck making this discision lol. I took my car to hi-torque came out with 280kw at the wheels on 10 pound with standard waste gate, standard exhaust which I was very happy with. good honest strong tune. cant fault it. (I had the valve springs, injecters fuel pump and cooler done.) but you will be happy no matter where you go out of the two tune shops. hope this helps a bit GOOD LUCK