Originally Posted by ke5rbd

the Super tuner has no maps loaded, but does have a large library in the software of maps. It will change timing and VE's and you can adjust the Acceleration enrichment, cranking fuel, Decel enleanment, AFR's, injector size, Engine size, Idle rpm, IAC warm up steps, Warm up enrichment, and probably half dozen more parameters. Street tuner only fuel within EPA limits or so I have been told.

Originally Posted by Jager247

I was wondering the same thing last year. I was going to get the street tuner to save some money. When I went to buy it, I changed my mind at the last minute and got the race tuner. I'm glad I did. When I go on trips with different climates, I can just plug in my race tuner to my lap top and make changes as needed. It also allows for my shop to make better custom maps for my bike instead of just downloading a pre made map they may or may not work.