I'm thinking of adding a bailey dump valve to my car. The engine is completely as standard at the moment. However, if something goes wrong then Vauxhall may blame the dump valve as the fault.
If something did go wrong with the car and I removed the dump valve before taking it to Vauxhall, would they be able to tell that it had a dump valve fitted? If they can't I'm tempted to do this if I ever need to take the car in. That way my warranty will still be honoured with the benefit of my car having a dump valve. Opinions please. TIA