Hi guys,
I've got a bit of a problem with my car overboosting in 5th and 6th gear when under load, from what I gather it should boost to 1.2, I'm peaking at 1.4 and getting a slight hesitation! The car is standard apart from a nur spec catback exhaust which I didn't think would cause a problem as original down pipe is still fitted. Any help would be appreciated. Cheers luke