can someone explain the difference between the screamin eagle street performance tuner {p.n. 41000008 } and the screamin eagle super tuner pro. {p.n.32109-08b.
The Street Performance Tuner does not give you any tuning capability. With the software all you can do is go in and look at what your settings are, you can't adjust them. If you make any performance enhancements to your bike, you have to take your bike in and the technician will use your interface to download a canned "street legal" map into your ECM to closely match the setup you have. All this is, was a way for the dealer to get $350 from you up front for the interface and then charge you a "nominal" fee every time you need to download a new map to your bike. The SE Pro Super Tuner, on the other hand, is about $100 more than the Street tuner, but gives you total accessibility to all the tables, allows you to make adjustments, and also has an "auto tune" feature, where you can attach the interface, hit the record button, and go out and ride and record up to 15 minutes of information. Download that information to your PC and run the auto tune feature in the software, and the software will make changes, if necessary, to your settings that you can accept, if you want, and download a new "tweaked" map to your ECM. Your dealer will also be able to dyno your bike with this tuner also.