Hi all new to the group and vauxhalls have tuned other makes b4 though.
I have a 2003 zaf gsi.
Fitted vxr turbo injs 80mm maf cross over delete. Had it mapped last week and alledgedley has 277bhp. I took it to york dragway and with the traction off it does 0-60 in 6.9 secs but qtr mile in 15.1 @...