i couldn't believe the difference when i first used my ant-lag... makes the car feel so alive so T34 it is.. but - .48 , .55 or .63 ? imo the .63 would proberly be far to laggy so whats the difference between .48 and .55 ? would i see over 300bhp with the .48 or will it need a .55 ? i had a stage 3 T3 and got bored of the power so thats why i want a bigger turbo also once mapped i want to leave it alone for a while. cheers for replies everyone ^^