Continuous variable tuner for 2010-2012 touring Harley. Fi 2000 powerpro. I had this on my 2010 street glide for 2 months before trading bikes. It's like new condition with instructions and original box. Easy to install. Harley's are notoriously lean from the factory and this cvt fixes that. CVT controls fuel injection by monitoring up to 80 times a second. No need to Dyno your mc with a cvt monitoring your fuel injection. Works with any exhaust or air intake combo. It was $550 new!