These Builder Series tailpipes are constructed from 3.00-inch mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exits at rear quarter panel turned down at an angle. Designed to be used with Side InlOutlet mufflers such as part# 943046 (Super 44 Series) or 943051 (50 Series) mufflers. Covered by our 3-year Limited Warranty. Note: Not designed to fit in factory bumper exhaust cutouts. Some fitment may be necessary. Does Not include installation hardware or exhaust tips.