These Builder Series tailpipes are constructed from 2.50 in. mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exit out the sides behind the rear wheels. Designed to be used with Side Inlet/Center Outlet mufflers such as part# 942546 (Super 44 Series) or 53056 (Super 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.