Hi guys,
This might be a very silly question but this is the first turbo car I've had, I have heard a lot about diverter valves splitting. I'm getting a loud whistle between 2-3k revs, the boost gauge isn't showing it's boosting. Mines the GT170 model... Could anyone tell me if this is normal? It's covered 98k miles, I don't have any receipts to show it being replaced, might it be worth getting done anyway?