West Bend Dyno’s LS swap 4” universal intake tube with mass air flow bung is perfect for the do-it-yourselfer. The 4” x 6” tube comes with a bead roll on both ends for an air-tight seal to your coupler. The tubes are available in black or with no color applied, in case you are painting your intake a custom color. Do you need a coupler? Try one of our 4-ply reinforced black silicone couplers.