Mash 125 Velocity Stack
grabcad
A push in velocity stack to fit inside of the airbox used on Euro 4 Mash 125cc motorcycles with the K157FMI engine.Simply remove the airbox entry and filter then the flame trap mesh screen. Loosen slightly the hose clamp for the throttle body to airbox connection and then push the velocity stack in from inside the airbox. Align the stack so it is seated firmly against the throttle body and then tighten the hose clamp. Refit the air filter and entry.Provides a useful boost in mid to upper rpm. would work best with a dyno run and remap.
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