Built-in stinger cone directs air smoothly into the bore of the carburetor or EFI throttle body and reduces turbulence and increases flow

OEM std bore cylinder Top end gasket kit

05 Piston compression: Standard Piston type: Couled Rings Quantity: Set Stroke: 4T

Gives your yz250f a new

DYNOJET PC-V DUC PANIGALE 1299 14-032 Elite Flow Lock-On Grip Built-in stinger cone directs airPower Commander V is Capable of Allowing Each Cylinder to Be Mapped Individual and for Each Gear With The Gear Position Input Connected, Can Add Any Single Pole Throw (Spst) Switch and Togle Between Two Different Fuel Base Table Base An Adjugst USB Powered From Computer; 9 volt adapter is no longer needed, fuel control for each individual cylinder in a smaller enclosure, gear speed input initials for map Adjustment based on gear, analog input initials