Twinair Powerflow Throttle Body Kit / Injectie gasklephuis - Yamaha YZ250F/450F with accelerator pump

with accelerator pump

Protect engine block and frame on motocross

Protects brake disc from rocks and roost

ProX Connecting Rod Kits come complete with Crankpin

radiator shrouds and seats

Twinair Powerflow Throttle Body Kit / Injectie gasklephuis - Yamaha YZ250F/450F with accelerator pumpThis Twin Air powerflow throttle body kit contains: It improves the engine speed, depending on the configuration. One orange inlet tube One pin Two throttle valves (small and large diameter) Two screws Configuration 1: increases power and acceleration at low and medium revs. Configuration 2: increases power at high revs. (without the orange inlet tube)