As a previous diesel truck owner I just caution you to get your pyro installed ASAP. I don't know if this thing is turboed or not from the factory but you still don't want to melt anything past the cylinder head. 1500 degrees is the upper limit. i wouldnt go past 1300-1350 The way mechs catch extra fuel is to look for star scorch marks on top of the piston, other than that they will be clueless. Just turn your fuel back before service.
I'm all for unlocking power the factory left behind. It's hard to kill a diesel. The only other thing id look at is clutch upgrades. Awesome work bro. I love that diesel smoke!