I have been running a Pheonix chip on my truck for a while now.
Just last month I was climbing Steven's pass in the truck using stock tune.
EGT was 1000.
I then switched to the 25 HP tow tune.
EGT dropped to 850 and that was on a steeper portion of the grade.
I use this truck to pull a 14k lb 5th wheel camper.
The best tune to use for EGT control (IMO) is the 25hp tune.
You get a little more power than stock tuning, and the EGT drops down by quite a bit.
The other positions on the chip are for more HP.
The 45hp tune gives a lot more power but the EGT pushes 1200 if I let it.
It's only good for short hills.
The 80hp tune is NOT for towing.
