Interesting so I got the car now a few days ago, and scanned my stock file, is there anything worth even changing in there to a completely stock car? Ive heard that you can get a little better gas mileage tuning for winter, also whats that COT Lean cruise all aboot anything that can be changed there?

I've had HP Tuners since may and I had it for my ecotec cav and it was 10x times easier to work with, im totally lost with what im seeing with the cobalt file. The only way I'm going to learn is through someone showing me what stuff does what, reading posts on these forums isnt helping.