Twinair Powerflow Throttle Body Kit / Injectie gasklephuis - Yamaha YZ250F/450FThis 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)

6% combined with a more aerodynamic shape

Re- fit the Brake clevis

Reduced frontal area of central wing by 15

not too loose

The silencer is adaptable to the standard front tube and

Airbox cover

Flexible knee

Wrist Pin #S508

Crank pin bearing radial running clearance is optimized to ensure maximum performance

KTM SXF450 09-12

manufacturing pistons right here in the USA

YKK® main zipper for maximum durability