22. A common oversight with using a non-factory fuel tank is proper venting. This is a II Much Fabrication fuel tank vent/baffle and K&N filter. The vent/baffle is plumbed to the vent port on the top of the tank and from there to the filter. When used with an unvented gas cap, this system eliminates fuel slosh during high-g maneuvers along with fuel smell emanating from the car.