2013-Current: Stock Kawasaki Ex300 With performance exhaust system, Spears SP15-300 head gasket, and removed secondaries,415 Spears Racing Drive chain,sprockets.


 EX300 Dyno Sheets






2013-Current: Stock Kawasaki Ex300 with Leo Vince Exhaust Compared to Stock EX300 with Leo Vince Exhaust and a re-flashed ECU,Dyno's by Spears Racing, All on Pump Gas 89 octane.