Flowmaster's® Flow FX Direct-Fit Muffler exhaust system for the 2014-2026 RAM 2500/3500 trucks with the 6.4L HEMI engine gives you a great value packed way to help you customize your RAM truck to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel Flow FX series "straight-through" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 13 hp and 11 lb-ft at the rear wheels. This results in better acceleration and towing performance. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

Manufacturer-listed applications

Match the engine, body, trim and installation requirements. All qualifications shown for an application apply together. Where this part requires a modified or aftermarket assembly, the vehicle listing alone does not confirm compatibility with factory equipment.

Vehicle	Configuration and qualifications
2014–2027 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Power Wagon Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2027 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Tradesman Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Big Horn Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2021 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Longhorn Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2020 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Limited Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2018 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Outdoorsman Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2018 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: SLT Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2018 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: ST Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2015 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Lone Star Engine displacement (cu in): 392 Qualification: Flow FX Series
2019–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Lone Star Engine displacement (cu in): 392 Qualification: Flow FX Series
2016–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Limited Engine displacement (cu in): 392 Qualification: Flow FX Series
2018–2023 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: SLT HD Engine displacement (cu in): 392 Qualification: Flow FX Series
2018 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Limited Tungsten HD Engine displacement (cu in): 392 Qualification: Flow FX Series
2019–2024 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Limited Engine displacement (cu in): 392 Qualification: Flow FX Series
2020 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Limited Rambox Engine displacement (cu in): 392 Qualification: Flow FX Series
2021–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Limited Longhorn Engine displacement (cu in): 392 Qualification: Flow FX Series
2023–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Rebel Engine displacement (cu in): 392 Qualification: Flow FX Series
2023–2024 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Power Wagon Engine displacement (cu in): 392 Qualification: Flow FX Series
2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Power Wagon Engine displacement (cu in): 392 Qualification: Flow FX Series
2023 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Big Horn Engine displacement (cu in): 392 Qualification: Flow FX Series
2024–2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Special Service Engine displacement (cu in): 392 Qualification: Flow FX Series
2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Black Express Engine displacement (cu in): 392 Qualification: Flow FX Series
2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: HD Tradesman Engine displacement (cu in): 392 Qualification: Flow FX Series
2026 Ram 2500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Warlock Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2027 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Tradesman Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2026 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Big Horn Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2026 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2024 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: SLT Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2020 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Longhorn Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2018 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: ST Engine displacement (cu in): 392 Qualification: Flow FX Series
2014–2015 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Lone Star Engine displacement (cu in): 392 Qualification: Flow FX Series
2017 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Lone Star Engine displacement (cu in): 392 Qualification: Flow FX Series
2019–2022 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Lone Star Engine displacement (cu in): 392 Qualification: Flow FX Series
2016–2026 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Limited Engine displacement (cu in): 392 Qualification: Flow FX Series
2016–2020 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Laramie Limited Engine displacement (cu in): 392 Qualification: Flow FX Series
2021–2026 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Limited Longhorn Engine displacement (cu in): 392 Qualification: Flow FX Series
2024–2026 Ram 3500	Engine: 6.4L V8 Quantity: 1 Application: Flowmaster Flow FX Direct Fit Muffler Submodel: Special Service Engine displacement (cu in): 392 Qualification: Flow FX Series