Velocity Stack
a velocity stack is always a great idea, that's why the oem honda air filter has a velocity stack built into its base. One reason why I don't like the K&N replacement filter for our cars is because it doesn't have a built in velocity stack, though the K&N FIPK intake has a velocity stack on it.
a velocity stack is always a great idea, that's why the oem honda air filter has a velocity stack built into its base. One reason why I don't like the K&N replacement filter for our cars is because it doesn't have a built in velocity stack, though the K&N FIPK intake has a velocity stack on it.
I'm running a BPI velocity stack with my set-up. The BPI has been proven to see gains by putting it on(B and H series). It was so good, Blox copies the design.

Here's the FIPK vs the BPI










