Nice looking installation. I also ordered mine through Diesel Manor and got the Isspro guages. I either stupid or gutsy but I did mine pre-turbo be careful to pull the drill and tap out often to remove filings. My temps pulling my 18,5 k 5th wheel run up to about 1,350 but I try to keep it 1250 or below.

I talked to Cummins directly and they told me the engine had enough safeguards to make it back off if you push to hard on the floor. I have since played with it putting my foot in it on a long hard pull and yes it does back off and cool off. I am running stock and I believe as long as you run stock it is well protected.

I had an 02 Duramax prior to this and running stock it stayed within temps on the pyro but when I boosted it, it really jumped the temps and I believe I would have smoked it if I hadn't had a pyro guage.