ill put it this way. tunercat and lt1edit. accompilsh the same things. but hypertech doesnt even come close to these peices of software. when you go to get a dyno tune this is what they are using. so if thats not enough performace i dont know what to tell you. trust me it will take you a year to learn how to do all the things that tunercat will do you. and your on the best website for that , right here