it has a decat, stage 4 rottweiler intake set up, o2 elim, ignadvancer, and PCV with a custom map. It's also has a 16tooth front sprocket. This bike will eat my Hayabusa, CBR1100 XX, ZX11, and ZX14's lunch from 40-120. No kidding. This is easily the quickest bike from those speeds I have ever ridden.