I was really looking at reliability as well. As much as I would like more power, my main concern is that the car would last. I didn't feel like always tinkering with the car. Andy's kit seem the safest. When I called spooolin his stage one had less Hp but stage 2 had a whole more, but I got the impression that it didn't seem reliable enough as a daily driver and I not the handiest around cars. May be I misunderstood him.No offense to spoolin, he seems to have a great, honest business as well. I just didn't feel like blowin my engine for my need for speed.