[Tow Master]

I agree with Diesel Nut. Gauges are definatly a safe thing to have.

If your dealership is going to get strict then id look at getting a recipt for your pyro getting installed. I'm not sure how your pyrometer was installed but Id get a recipt saying the manifold was removed drilled cleaned and re-installed. If you ever have turbo problems the dealer could say it was from shavings from your pyro.

Thats how I did mine. Better safe than sorry

 

[Tow Master]

Ya... My friend was a GM tech and was workin on his own dmax at the dealership. A GM rep came over with the service wrighter because the service wrighter was telling him all the stuff he had done to it (banks, intake, exhaust). The rep walked over and started to wright down the vin. My buddy asked what he was doing. The guy said makin sure this ever gets a warranty claim :rof