The current one I am doing is 12587603. The only reason I wanted to use tunerpro is because I am very new to tuning and get really lost but am good at following directions. I could only find videos on YouTube that tell me how to remove vats and delete smog stuff using universal patcher but nothing explaining things like turning fans on or removing speed limiters. If you can recommend any literature that will help my understanding somewhat I would greatly appreciate it I just don't wanna have to bother you guys for every question that arrives.