717857 Introducing the new FlowFX® Cat-back exhaust system for 2014-2019*(*Classic body 5.3L, 4wd w/143.5-inch wb) GM Silverado/Sierra 4.3L and 5.3L engines. This performance exhaust system fits both 2/4 Wheel drive models with 143.5 and 153-inch wheelbases and is manufactured from 409S stainless steel for years of trouble-free service. Features include 3.00-inch inlet pipe leading into a FlowFX "straight-through" muffler for great sound and maximum performance. The single 3.00-inch mandrel-bent tailpipe exits out behind the rear passenger side tire and is finished off with large 4.50-inch diameter black ceramic coated 304S stainless steel tip, giving your Silverado/Sierra that custom look that goes hand in hand with the deep performance sound of the FlowFX muffler. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Includes installation instructions and all necessary hardware. Features: Large 4.50-inch Stainless Steel Black Ceramic Coated Tip Deep Powerful Tone Inside and Outside the Vehicle FlowFX "Straight-through" Performance Muffler Uses the Factory Hanger Locations Full Stainless Steel Construction Lifetime Limited Warranty Easy Installation 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 Brand Flowmaster CARB EO No Emission Code 5 Exhaust Series FlowFX Exit Position Single Out Side Material 409 Stainless Steel Mount Type Uses Factory Hangers Muffler Inlet Diameter 3 Muffler Outlet Diameter 3 Muffler Series FlowFX Product Type Exhaust System Single Dual Single Sound Level Moderate System Type Cat-back Tip Cut Angle Tip Diameter 4.5 Tip Edge Style Rolled Tip Finish Black Ceramic Tip Length 11 Tip Logo Embossed Tip Material 304 Stainless Tip Shape Round Tubing Diameter (in) 3 Tubing Material 409S Stainless Steel UPC 700042039173 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 717857 Instructions for Part# 717857 Warranty for Part# 717857 "Fits 2014-2018 GM Silverado/Sierra 1500 4.3L & 5.3L engines, 2/4 Wheel Drive, 143.5 and 153-inch Wheelbases - Also fits 2019 GM 1500 (Legacy body only) 5.3L, 4WD, extended cab w/143.5-inch Wheelbase