Well i just got bought a 2012 Ninja 250 about 3 weeks ago and I'm already adding some mods too it. I'm getting a yoshimura full exhaust system with a Dyno Jet Kit Stage 2 on it along with 140/17/70 Pirellis Rossa II put on over the weekend.. I will post some before and after pics as well as my riding experience after the upgrade for my ninja family members