I have a 2009 cobalt lt xfe. I have added a k&n cold air intake, zzp midlength header, catless 2.5" downpipe and a 2.5" catback exhaust (all zzp). I would like to tune it myself because ive always wanted to learn and its hard to pay someone a good amount of money and have faith in there tuning abilities. I have installed wideband also. ive been reading erm tuning modules to get a better understanding of everything and termology. I ordered hptuners on a sunday so I have to wait for the cable and stuff in the mail. what I would like to know is where do I start after its hooked up? I figure id delete rear o2 sensor first and turn off things like speed limiter and torque management because those seem fairly easy, but changing the timing to run 93 and adjusting fueling tables for stoich at idle and 12.6 at wot im worried about. Im sure once I get the program and cable and hook it up and read through those modules while its in front of me will make it easier but other than that do you guys have any advice for a learning tuner for his first tune? thank you in advance!