Wondering what gauges everyone uses other than the stock. Not so much the brand but the type. I have ISSPRO and am thinking abiout adding more.

I run an Oil pressure, 3,000 RPM Tach, Boost, and Pyro.

I see a lot of talk of fuel pressure, and trans temp.

 

Fuel pressure is as important as anything on these trucks. Trans. Temp is much more important is you have an auto trans.

 

The truck came with TST boost and pyro. I've added an Isspro R5503 tach. Eventually I'll switch the boost and pyro to match the Isspro, because, while they work fine, the lighting on the TST gauges is pretty poor.