I thought i would just post this. I just got my truck back from having a suncoast put in it. I programmed it to level six and turned the defuel off. It heats up to 1600 at 100 mph. Then I thought I would put the chip on 10 to see how much smoke it would blow. I left it set to defuel. I took off and was going to let out of it when it hit 1600 but it never did. I dont think level 10 felt as fast either when it was defueling but it smokes more.:rockin