i did the same thing...when my fuel pump went i had to put the stock settings back on and then drove to work for a day or two and was like wow this sux and slapped er back into performance mode....wow everythings soo much smoother now
Ya just put my tuner back in again.I will say it again.Wow,what a diference. But im seriously thinking of going with SCT with livewire tunes. But have heard some bad thing also with 2 of my friends chevy's who run livewire and its been ********ing up there truck.So gonna call them first and get some info on them first and also tell them about my friend chevy's.
well I have to say this tuner was actually worth the wait and all I have run so far is the gas mileage tune.