2008 Kawasaki Ninja 250R with a Yoshimura Full Exhaust System Featuring a Quiet Insert

SSB took a 2008 Kawasaki Ninja 250R with a Yoshimura full exhaust system to the dyno. This exhaust has the quiet insert in place and gained more power than the straight exhaust. It gained 6 horsepower over stock, has a smooth power curve and is reasonably quiet yet still has an aggressive sound