Velocity Stack- 4412XP As your "filter" clogs up

As your "filter" clogs up with oil & dirt during racing conditions

Please measure the ID of your air filter to determine which stack you will need

The common misconception about valve cover breathers

X-Stream Top

no more duct tape covering your valve covers

Velocity Stack- 4412XP As your "filter" clogs upWhat is a Velocity stack? A velocity stack in this instance, is a bolt on enhancement that fastens to your air cleaner base and is able to produce low end torque and faster throttle response. But how? Simple the faster and straighter you can deliver air into the carburetor before it reaches the boosters, 2 things will happen. Forcing the air to speed up will create a better and fuller intake charge, creating almost a " turbo like effect". Faster air