JEGS Long Tube Design Header Weld-Up Tubing Kits are designed for open-wheel, roadster and sprint-car style applications. Features longer primary length before the downward bend for over the frame rail installation. Contains eight mandrel bent 16-gauge aluminized steel primary tubes and two weld-on collectors. Gaskets, bolts, flanges and street hookup/reducers are sold separately. Cutting, welding and fabrication required. Made in USA.