Twinair Powerflow Throttle Body Kit / Injectie gasklephuis - Yamaha YZ250F/450F Custom intake manifold boot that

Custom intake manifold boot that offers a straighter shot to the intake that greatly enhances both airflow and performance

adding a whopping 23

Accepts OEM O-rings

Lucht- en Ruimtevaartklasse 5 Ti-6Al-4V Titanium

Twinair Powerflow Throttle Body Kit / Injectie gasklephuis - Yamaha YZ250F/450F Custom intake manifold boot thatThis 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)