Flowmaster's American Thunder Cat-back exhaust system for the 2014 through 2018 Ram 2500 truck is perfect for the person looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear/ Dual Out Side) emissions-legal system, for the Crew Cab Long Bed/Standard Bed and Mega Cab models with a 6.4L V8 engine and coil spring rear suspension, features a stainless steel 50 Series HD muffler and dual 3.0" stainless steel tailpipes. Like all Flowmaster systems the pipes are mandrel bent to reduce any restrictions and maximize performance. The system finishes off with polished 4.0" stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Note: Does not fit with optional air bag suspension.Warranty Information:Limited LifetimeCalifornia Proposition 65 Chemical Name 1: Nickel (metallic)California Proposition 65 Chemical Name 2: Chromium (hexavalent compounds)Catalytic Converter Included: NoColor: Black Muffler; Natural TubingExhaust Series: American ThunderExhaust Type: DualExit Position: Dual Out Rear/ Dual Out SideExit Style: StraightHeat Shield Attached: NoInlet Diameter: 3.500 in.Inlet Inside Diameter: 3.000 in.Material: Stainless SteelMount Type: FlangedMuffler Count: 1Muffler Part Number: Kit OnlyMuffler Series: 50 Series HDMuffler Type: ReflectionOutlet Diameter: 3.000 in.Outlet Outside Diameter: 3.000 in.Shape: OvalSingle or Dual: DualSound Level: ModerateSystem Type: Cat BackTail Pipe Diameter: 3.000 in.Tip Cut: AngleTip Diameter: 4.000 in.Tip Edge Style: CutTip Finish: PolishedTip Length: 13.000 in.Tip Logo: EmbossedTip Material: Stainless SteelTip Quantity: 2Tip Shape: RoundTip Type: Double WallTitle: Flowmaster 817709 Cat-back System - DOR - American Thunder - Moderate SoundTubing Diameter: 3.000 in.WARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov