http://www.thunderproducts.com/media-08.htm
"For Banshee riders, it allows you to fine-tune your engine one cylinder at a time, as each cylinder may not have the same fuel needs. Dial-A-Jet only adds fuel and cannot lean past the main jet, which means that even at its leanest setting, Dial-A-Jet is adding fuel to the engine."
wondering if its worth the money?