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 Inlet/Center Outlet mufflers such as part# 943046 (Super 44 Series) or 943051 (50 Series) mufflers. Covered by our 3-year Limited Warranty. Note: Does Not include installation hardware or exhaust tips.