Introducing Flowmaster's new line of FlowFX Cat-back exhaust systems for the 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 5.3L V8 gas engine. NOTE: Does not fit crew cab 2WD with 2 piece driveshaft. This dual 2.50 inch dual tailpipe system is perfect for the person looking for a moderate to aggressive exterior and interior sound level with all of the performance benefits that you would expect from Flowmaster. Features include 409S stainless steel mandrel bent tubing flowing into a FlowFX straight-through performance muffler for maximum power and a deep aggressive sound. The system is then finished off with dual 4.00 inch black ceramic coated 304 stainless steel tips showing off the Flowmaster logo and exits in front of the rear tire. Designed for easy installation, this system includes all necessary parts, hardware and detailed instructions.Warranty Information:Limited LifetimeCalifornia Proposition 65 Chemical Name 1: LeadCalifornia Proposition 65 Chemical Name 2: ChromiumCatalytic Converter Included: NoExhaust Series: Flow FXExhaust Type: Cat-BackExit Position: Dual Same SideHeat Shield Included: NoInlet Inside Diameter: 2.500 in.Material: 409 Stainless SteelMaterial: 409S Stainless SteelMount Type: Uses Factory HangersMuffler Body Length: 14.000 in.Muffler Body Material: 409S Stainless SteelMuffler Body Shape: OvalMuffler Color: NaturalMuffler Count: 1Muffler Finish: BrushedMuffler Inlet Diameter: 3.000 in.Muffler Inlet Location: CenterMuffler Outlet Diameter: 2.500 in.Muffler Outlet Location: Dual OutletMuffler Overall Length: 20.000 in.Muffler Part Number: Kit OnlyMuffler Series: Flow FXMuffler Type: AbsorptionSingle or Dual: DualSound Level: Moderate/AggressiveSystem Type: Cat BackTail Pipe Diameter: 2.500 in.Tip Cut: AngleTip Diameter: 4.000 in.Tip Edge Style: CutTip Finish: Black Ceramic CoatedTip Length: 5.250 in.Tip Logo: LaserTip Material: 304 Stainless SteelTip Quantity: 2Tip Shape: RoundTip Type: Double WallTubing Diameter: 3.000 in.Tubing Material: 409S Stainless SteelWARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov