15816 These Builder Series tailpipes are constructed from 2.50-inch mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exit straight-out the back under the rear bumper. 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: Some fitment may be necessary. Does Not include installation hardware or exhaust tips. Features: Designed for Off-set Inlet/Center Outlet Mufflers Exits Straight-out under the Rear Bumper Mandrel-bent for Maximum Performance High Clearance around Rear Differential 16 Gauge Aluminzed Steel Tubing Does Not Include Hardware 3-year Limited Warranty About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS Automotive Item Grade High Performance Brand Flowmaster Color Gray Emission Code 5 Exit Position Dual Rear Exit Fitment Direct OE Replacement Inlet Diameter (in) 2.5 Material Aluminized Steel Outlet Diameter (in) 2.5 Overall Length (in) 65.25 Product Type Exhaust Accessories System Type Tailpipe Kit Tubing Diameter (in) 2.5 UPC 700042014682 California Proposition 65 Required No Part Number 15816 EMISSIONS 5 This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. TECH RESOURCES Warranty for Part# 15816 Fits 1955-1957 Chevrolet 2 Dr/4 Dr Sedan & Coupe. Does Not fit Wagons. Designed for Offset Inlet/Center Outlet mufflers.