I'm running a stock 2001 ETH except for a 4 inch exhaust. I do have gauges and pull a 21 foot, 9000 lb. toy hauler. I will climb a grade and inch the EGTs to over 1200 degrees. I want more power but more power equals more heat. My next upgrade would be an AFE stage 2 air filter, then an Edge Comp box because I like the idea of turning it off completely if needed. My next part would involve injectors and possibly a larger turbo. I have a BD turbo mount exhaust brake and don't want to loose that to a turbo upgrade if possible. Is this the right path? My question is, if I do these upgrades, can I pull the grades faster and still keep the EGTs safe? I hear alot of talk about guys having to back off the GO pedal, so they don't plant the temperatures into the melting zone, but if I have to do that, will I still be pulling the grades at the same speed as I am doing now in stock form? I'm soooo confused...