The Flowmaster® Outlaw Cat-Back exhaust system is engineered for maximum performance and an extremely aggressive exhaust tone for your Dodge Challenger. Designed for 2015–2023 SRT 392 and R/T Scat Pack models with the 6.4L engine, the SRT Hellcat and Demon with the 6.2L engine, and 2017–2021 R/T models equipped with the 5.7L engine, this system delivers raw muscle-car sound and improved exhaust flow.

This performance system uses large 3.00-inch mandrel-bent stainless steel tubing and an exclusive Scavenger Series® X-pipe to increase horsepower and torque while producing a unique deep tone. It then flows through race-proven Outlaw® Series mufflers for the most aggressive exhaust note available from Flowmaster.

Factory exhaust valves are eliminated, but the system includes “dummy valve stands” that allow the factory actuators to operate normally without triggering a CEL. The system is finished with quad 3.50-inch polished 304 stainless steel embossed tips for a bold, high-performance look.

All necessary hardware is included, and installation uses factory hanger locations. Covered by Flowmaster’s Lifetime Limited Warranty.

Features

• Exclusive Scavenger X-pipe for maximum power and torque

• Dual 3.00-inch mandrel-bent stainless steel tubing

• Includes dummy valve stands to retain OE actuator functionality

• Quad 3.50-inch polished 304 stainless steel embossed tips

• Outlaw Series mufflers for maximum aggressive sound

• Increases exhaust flow for better performance

• Stainless steel construction

• Very aggressive exterior and interior tone

• Uses factory hanger locations for easy installation

• Lifetime Limited Warranty

Specifications

• Brand: Flowmaster

• Category: Exhaust

• Sub-Category: Exhaust and Tail Pipes

• Product Type: Exhaust System

• Part Type: Exhaust System

• Type: Cat-Back

• Exhaust Series: Outlaw

• Sound Level: Aggressive

• Emission Code: 5

• CARB Compliant: Yes

• Catalytic Converter Included: No

• Clamps Included: Yes

• Clamping Type: Flat Band

• Exit Style: Dual Out Rear

• Pipe Material: 409 Stainless Steel

• Pipe Color: Silver

• Main Piping Diameter: 3.00 in

• Inlet Diameter: 2.77 in

• Inlet Type: Clamp-On

• Mount Type: Flanged

• Hangers Included: Yes

• Heat Shield Included: No

• Gasket or Seal Included: No

• Spring Bolt Kit Included: No

• Tail Pipe Quantity: 2

• Tail Pipe Outlet Outside Diameter: 3.00 in

• Tail Pipe Tapered Outlet: No

• Exhaust Tip Quantity: 4

• Exhaust Tip Material: 304 Stainless Steel

• Exhaust Tip Finish: Polished

• Exhaust Tip Diameter: 3.50 in

• Exhaust Tip Length: 9.50 in

• Exhaust Tip Shape: Round

• Exhaust Tip Wall: Single Wall

• Tip Logo: Embossed

• Muffler Quantity: 2

• Muffler Series: Outlaw

• Muffler Type: Chambered

• Muffler Body Material: 409 Stainless Steel

• Muffler Finish: Black High-Temperature Paint

• Muffler Body Shape: Round

• Muffler Body Height: 4.00 in

• Muffler Body Width: 4.00 in

• Muffler Body Length: 6.50 in

• Muffler Outlet Quantity: 1

• Muffler Inlet Inside Diameter: 3.00 in

• Muffler Inlet Outside Diameter: 3.13 in

• Valve Included: Yes (Dummy Valve Stands)

• Valve Actuator Included: No (Reuse OEM)

• Finish: Natural

• California Proposition 65: Yes

• California Proposition 65 Chemicals: Chromium (hexavalent compounds), Nickel (Metallic)

Fitment 

Fits the following vehicles:

Dodge Challenger – 6.4L Engine

• 2015 Dodge Challenger SRT 392

• 2016 Dodge Challenger SRT 392

• 2017 Dodge Challenger SRT 392

• 2018 Dodge Challenger SRT 392

• 2019 Dodge Challenger SRT 392

• 2020 Dodge Challenger SRT 392

• 2021 Dodge Challenger SRT 392

• 2022 Dodge Challenger SRT 392

• 2023 Dodge Challenger SRT 392

Dodge Challenger – 6.4L Engine (Scat Pack / R/T Scat Pack)

• 2015–2023 Challenger R/T Scat Pack

• 2015–2023 Challenger Scat Pack

Dodge Challenger – 6.2L Engine

• 2015–2023 Challenger SRT Hellcat

• 2018–2021 Challenger SRT Demon

Dodge Challenger – 5.7L Engine

• 2017 Dodge Challenger R/T

• 2018 Dodge Challenger R/T

• 2019 Dodge Challenger R/T

• 2020 Dodge Challenger R/T

• 2021 Dodge Challenger R/T