Arrow 71065AKN Indy Race Evo Stainless Full Exhaust System w/Aluminium Dark Muffler for Kawasaki Ninja 650/Z650 24-UpThis ARROW Full System has Stainless Steel Header Collector unit matched to a Indy Race Evo Aluminium Silencer to replace the O. E. Exhaust system. This combination will deliver performance gains, weight saving benefits and add an extra wow factor to this modern style motorcycle. This ARROW Racing 2: 1 Header Collector set eliminates the O. E. Exhaust Catalyst unit but retains the provision for the O. E. exhaust sensor s. The header collector set is