magicguy

Just wonder if the BPI flowstack is the same as the velocity stack that came with the Mugen intake, If I remove the Mugen intake box and keep the velocity stack with K&N filter, does it react the same as the BPI flowstack?

MPR

If the mugen flow stack is dimensionally similar to the BPi flow stack, it should perform very similar.

FPMotorsports

Hey... only velocity stack I would use is BPi