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Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709

Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709
Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709Flowmaster 2014-2023 Ram 2500 American Thunder Cat-Back Exhaust System 817709
$1,716.99 ea
NEWARRIVING SOONEstimated Ship Date 01/10/2025 (If Ordered Today)90 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/25/2024
Model: 4005423
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 3
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The American Thunder® cat-back exhaust system for 2014-2023 Ram 2500 trucks is perfect for the person looking for moderately aggressive interior and aggressive exterior sound levels, with all of the performance benefits that you would expect from Flowmaster®. This bolt-on emissions-legal system fits the Crew Cab Standard Bed/Long Bed and Mega Cab models with a 6.4L engine and coil spring rear suspension. The system features a stainless steel 50 Series HD™ muffler with large 4.00-inch internals. The large dual 3.00-inch stainless steel tailpipes are mandrel-bent to reduce restrictions and maximize performance. The kit has two options for tailpipe exits, either out the sides behind the rear wheels for towing, or straight out the back under the rear bumper. They are finished off with a pair of large 4.00-inch polished stainless steel tips. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts, hardware and easy to follow installation instructions. Note: Fits 149.4, 160.5 and 169.4-inch wheelbases. Does not fit trucks with the optional factory airbag suspension.
Features:
  • Stainless Steel 50 Series HD Performance Muffler
  • Dyno Tuned For Maximum Performance
  • Mandrel-bent Stainless Steel Tubing
  • Uses the Factory Hanger Locations
  • Clears the Factory Spare Tire
  • Stainless Steel Construction
  • Includes Two Tailpipe Exits
  • Lifetime Limited Warranty
Fits 2014-2023 Ram 2500 with 6.4L engine and coil spring rear suspension. Fits crew cab/short Bed, crew cab/long bed and mega cab. Does not fit with factory air bag option.
Installation Notes:
Fits 2014-2024 Ram 2500 with 6.4L engine and coil spring rear suspension. Fits crew cab/short Bed, crew cab/long bed and mega cab. Does not fit with factory air bag option.
About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
817709_instructions.pdf2.4MB
817709_dyno.pdf723.92KB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Ram 2500 Big Horn 2014 6.4L / 392 / V8
Ram 2500 Big Horn 2015 6.4L / 392 / V8
Ram 2500 Big Horn 2016 6.4L / 392 / V8
Ram 2500 Big Horn 2017 6.4L / 392 / V8
Ram 2500 Big Horn 2018 6.4L / 392 / V8
Ram 2500 Big Horn 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Big Horn 2020 6.4L / 392 / V8
Ram 2500 Big Horn 2021 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Big Horn 2022 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Big Horn 2023 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 HD Limited 2021 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 HD Limited 2022 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Laramie Limited 2014 6.4L / 392 / V8
Ram 2500 Laramie Limited 2015 6.4L / 392 / V8
Ram 2500 Laramie Limited 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
Ram 2500 Laramie Limited 2020 6.4L / 392 / V8
Ram 2500 Laramie Longhorn 2014 6.4L / 392 / V8
Ram 2500 Laramie Longhorn 2015 6.4L / 392 / V8
Ram 2500 Laramie Longhorn 2016 6.4L / 392 / V8
Ram 2500 Laramie Longhorn 2017 6.4L / 392 / V8
Ram 2500 Laramie Longhorn 2018 6.4L / 392 / V8 Does Not Fit With Factory Air Bag Option
Ram 2500 Laramie Longhorn 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Laramie Longhorn 2020 6.4L / 392 / V8
Ram 2500 Laramie 2014 6.4L / 392 / V8
Ram 2500 Laramie 2015 6.4L / 392 / V8
Ram 2500 Laramie 2016 6.4L / 392 / V8
Ram 2500 Laramie 2017 6.4L / 392 / V8
Ram 2500 Laramie 2018 6.4L / 392 / V8 Does Not Fit With Factory Air Bag Option
Ram 2500 Laramie 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Laramie 2020 6.4L / 392 / V8
Ram 2500 Laramie 2021 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Laramie 2022 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Laramie 2023 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited Longhorn 2021 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited Longhorn 2022 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited Longhorn 2023 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited 2016 6.4L / 392 / V8
Ram 2500 Limited 2017 6.4L / 392 / V8
Ram 2500 Limited 2018 6.4L / 392 / V8 Does Not Fit With Factory Air Bag Option
Ram 2500 Limited 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited 2020 6.4L / 392 / V8
Ram 2500 Limited 2021 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited 2022 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Limited 2023 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Lone Star 2014 6.4L / 392 / V8
Ram 2500 Lone Star 2015 6.4L / 392 / V8
Ram 2500 Lone Star 2020 6.4L / 392 / V8
Ram 2500 Lone Star 2022 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Lone Star 2023 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Power Wagon 2014 6.4L / 392 / V8
Ram 2500 Power Wagon 2015 6.4L / 392 / V8
Ram 2500 Power Wagon 2016 6.4L / 392 / V8
Ram 2500 Power Wagon 2017 6.4L / 392 / V8
Ram 2500 Power Wagon 2018 6.4L / 392 / V8
Ram 2500 Power Wagon 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Power Wagon 2020 6.4L / 392 / V8
Ram 2500 Power Wagon 2021 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Power Wagon 2022 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Power Wagon 2023 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Rebel 2023 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 SLT HD 2021 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 SLT HD 2022 6.4L / 392 / V8 FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 SLT 2014 6.4L / 392 / V8
Ram 2500 SLT 2015 6.4L / 392 / V8
Ram 2500 SLT 2016 6.4L / 392 / V8
Ram 2500 SLT 2017 6.4L / 392 / V8
Ram 2500 SLT 2018 6.4L / 392 / V8 Does Not Fit With Factory Air Bag Option
Ram 2500 Tradesman 2018 6.4L / 392 / V8 Does Not Fit With Factory Air Bag Option
Ram 2500 Tradesman 2019 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Tradesman 2020 6.4L / 392 / V8
Ram 2500 Tradesman 2021 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Tradesman 2022 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.
Ram 2500 Tradesman 2023 6.4L / 392 / V8 Fits Crew Cab/Short Bed (149" WB) and Crew Cab/Long Bed (169" WB ) and Mega Cab (160.5" WB). Does not fit with factory air bag option.
FITS CREW CAB/SHORT BED (149" WB) AND CREW CAB/LONG BED (169" WB ) AND MEGA CAB (160.5" WB). DOES NOT FIT WITH FACTORY AIR BAG OPTION.

Specifications:

2WD/4WD RWD/4WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Catalytic Converter Included No
Color Black muffler, natural tubing
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear / Dual Out Side
Heat Shield No
Inlet Diameter (in) 3.5
Material 409 Stainless Steel
Mount Type Flanged
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 50 Series HD
Muffler Type Reflection
Outlet Diameter (in) 3
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Shape Oval
Single Dual Dual
Sound Level Aggressive / Moderate
System Type Cat-back
Tip Cut Angle
Tip Diameter (in) 4
Tip Edge Style Cut
Tip Finish Polished
Tip Length (in) 13
Tip Logo Embossed
Tip Material Stainless Steel
Tip Quantity 2
Tip Shape Round
Tubing Diameter (in) 3
Warranty Limited Lifetime (Lifetime)

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