Hi guys, i have a mk4 gti , its 150 standard and I've had it mapped to around 190 according to longlife. I'm thinking about taking it up to around 270 as I've heard i can get the ko4 turbo which will allow me to do so? Anyway if not could you point me in the right direction as to what I need next to get more bhp out of my car please.
Thanks in advancee