CupraJoe1984
Guest
Hi my Leon cupra has had an after Market atmospheric dump valve fitted, think something is wrong with it when I bought the car there was no hiss from the valve, then later that day I floored it was in fourth gear at around 4000 rpm power died, changed to fit and few seconds later power back on, since then valve hisses but car feels like it's lost power, is this anything to do with the valve? If so I've got a friend at a performance garage can get a stock valve for 25 snots plus vat or an apr for about another 100 quid which would be recommended? Or has anyone got any other ideas of what the problem may be, also got told the forge valves were crap anyone got a second opinion? Many thanks in advance. Joe