Only a 50 shot, not too big in the beginning. We didn't install it yet because I wanted to take a look at the stock tune calibration. I spent about 2 hours last night trying to my LS1 scan tool and tuning software to mate with the Cobalt. We were successful, but it doesn't scan normally. Some of the data was inaccurate I believe, or maybe the file was corrupted when I converted it to Excel. But we were able to scan and log the important stuff like Timing, O2 voltage, IAT, ECT, RPM, MAP, MAF, etc. We'll be heading to the track to do more logging tonight. Also I didn't see a MAF sensor under the hood, so we decided against the nitrous for the time being. That was also because it appears that the car is using a returnless fuel system with a regulator without a vacuum port, or I didn't look good enough. But last night my main concern was being able log engine vitals before we make any big performance mods. I have to do more research on the type of EFI in these cars, I'm so used to playing with my LS1 that I've been spoiled!
