I sent this email to the Spartan tech support guys, I figured I'd post it up to take your opinion, feel free to give me some advice thanks
"Just picked up my tuner today, I have the race tunes 40-350 (correct me if I'm wrong) and the standard tunes, and the cat/dpf delete pipe. (stock down pipe, stock muffler/tips). First of my questions- I have only run the 210 tune, I love it, very fast and responsive, I have notice a subtle jolt when I get off the gas all the way, and the same thing when I barely apply it. It makes me nervous about the transmission. Should I be concerned? Surely after the first day I shouldn't be experiencing problems. Second question- how much can my truck honestly handle? It's a 2008 f-250 4 door with the 6 3/4 bed. I don't want to jam it to the floor and blow a gasket or something. Third question- when the screen is on the 3 gauge cluster on the spartan theme, the very left gauge, I'm not sure what it is. I know the middle is boost and the right is something along the lines of "EGTS" or something like that. Anyways, the one on the right shows the needle to be right around 180 degrees right close to maxing out. What is that and should it concern me? Fourth and final question- do I need to buy a down pipe and muffler?
Thanks for any advice in advance.