Looking at buying a mk4 golf t one of the ones I have been lookin At has a dump valve as apposed to a recirc valve fitted and as I am not sure how long it's been fitted not sure if he has had Ny problems with it going in to limp mode etc I test drove it boost gauge said it was holding boost fine only asking cos I don't want to buy a car that's gonna run into problems as soon as I buy it
