I run their 50HP tow tune on my 6.7 and it’s perfect for what you’re describing. EGTs stay in check even pulling a 10k lb fifth wheel through the mountains. Shifts are firm but not harsh. Big improvement over stock.

Switched to plastic risers after my corks got moldy, and @diana_knight is right about the airflow. I mean, the corks worked for a season but started to decompose in the dampness, which attracted bugs. Now I use those little green plastic feet, and they keep the pots elevated without any blocking, plus they're easy to clean. Idk, maybe it's just me, but seeing the water actually drain away makes a huge difference for root health.