I had a Superchips 90hp tune loaded into my 2004.5 Cummins 6 speed manual (stock injectors, stock turbo, stock cp3, GDP mechanical lift pump, cat delete, intake muffler delete, straight thru muffler). Since playing with HP (I was excited to say the least!) I've dropped post, added main duration and timing, lowered pilot timing a little at WOT, smoothed rail, and some other bits. It feels about as quick as the 90hp Superchips tune, but I think egts with my tune are hotter. I'm yet to load the superchips back in and log to see what they do that I'm not. Anyone else been comparing box tuners this way?