Silencer Code: UN30H. OEM Lambda sensor (O2 sensor) compatible. Ninja 250 Z 250 SL Exhaust Silencer GP Round Stainless SG36R. Ninja 500 Z 500 Exhaust Oval Silencer Muffler End Can BN23V. Ninja 400 Z 400 Exhaust Silencer Oval Muffler End Can 230SS.
eBay