5 Best Ram 2500 6.4 Hemi Exhaust Options (2026): Top Picks
The best exhaust for a Ram 2500 6.4 Hemi depends on the exact truck configuration and the sound you want under normal driving and towing. These five Amazon-listed exhaust products include complete cat-back systems, a direct-fit muffler kit and one clearly labeled custom-fabrication muffler.
Compare documented fitment, material, installation scope and steady-speed cabin noise before buying. We have not independently measured power, fuel economy or drone, so this guide makes no guaranteed performance claims.
Quick 5 Best Ram 2500 6.4 Hemi Exhaust Options Comparison – Top Picks at a Glance
| Image | Product | Fitment | Key Feature | Best For | Details |
|---|---|---|---|---|---|
 | 1. Borla 140851BC cat-back family | Amazon listing verified; check fitment | ✓ Listed use: A full-system option listed for selected Ram 2500 6.4L configurations. | Drivers seeking a complete matched system. | View on Amazon |
 | 2. Flowmaster FlowFX 717930 Cat-Back | Amazon listing verified; check fitment | ✓ Design: 3.5-inch mandrel-bent tubing. | Replacing the full cat-back on a listed truck. The installation guide specifies 2014–2024 Ram 2500/3500 6.4L and 149.5-,… | View on Amazon |
 | 3. MagnaFlow D-Fit 19493 Muffler Kit | Amazon listing verified; check fitment | ✓ Design: 3.5-inch main piping. | Changing the muffler while keeping serviceable factory piping. MagnaFlow currently lists 2014–2026 applications; verify the… | View on Amazon |
 | 4. MagnaFlow Street Series 15333 Cat-Back | Amazon listing verified; check fitment | ✓ Design: A complete cat-back system. | Owners preferring a complete Street Series system and its exit style. The Amazon listing names 2014–2021; the manufacturer… | View on Amazon |
 | 5. MagnaFlow 12909 Universal 3.5-inch Muffler | Amazon listing verified; check fitment | ✓ Design: 3.5-inch inlet and outlet. | A custom muffler replacement planned by an exhaust fabricator. This is not a bolt-on Ram kit. Its 28-inch overall length,… | View on Amazon |
5 Ram 2500 6.4 Hemi Exhaust Options — Fitment and Buying Notes
1. Borla 140851BC cat-back family
A full-system option listed for selected Ram 2500 6.4L configurations. Check cab, bed, model year, and dual-rear-wheel exclusions on the exact part page.
Key Features That Stand Out
- ✓ Listed use: A full-system option listed for selected Ram 2500 6.4L configurations.
- ✓ Fitment check: Check cab, bed, model year, and dual-rear-wheel exclusions on the exact part page.
- ✓ Best for: Drivers seeking a complete matched system.
Why We Recommend It
This option is included for drivers seeking a complete matched system. The linked Amazon product listing provides the application to verify before purchase.
Performance Analysis
We did not measure sound, drone, or horsepower on a matching Ram 2500. Compare installation dimensions and listen to recordings from the same 6.4L configuration.
Best For
Drivers seeking a complete matched system.
Our Expert Opinion
The practical decision is whether this specific option solves the owner’s problem. Check cab, bed, model year, and dual-rear-wheel exclusions on the exact part page. Compare the complete project cost and installation requirements before ordering.
2. Flowmaster FlowFX 717930 Cat-Back
A 3.5-inch 409-stainless cat-back with a straight-through muffler and single-side exit for listed 6.4L heavy-duty Rams. The installation guide specifies 2014–2024 Ram 2500/3500 6.4L and 149.5-, 160- and 168.9-inch wheelbases. Confirm the exact truck and guide revision.
Key Features That Stand Out
- ✓ Design: 3.5-inch mandrel-bent tubing.
- ✓ Details: FlowFX straight-through muffler.
- ✓ Application: A five-inch black-finished tip and factory-style mounting hardware.
Why We Recommend It
Compare this with Borla when you want a complete piping-and-muffler kit rather than a muffler-only change. Material, exit position and wheelbase fit are more useful buying criteria than a claimed horsepower figure. Listen to recordings from the same cab and engine, including steady-speed towing.
Performance Analysis
This is an editorial assessment of the listed design and application, not a hands-on test. A complete kit with documented wheelbase applications. 409 stainless can discolor or show surface corrosion; cabin drone depends on the truck and operating speed.
Best For
Replacing the full cat-back on a listed truck. The installation guide specifies 2014–2024 Ram 2500/3500 6.4L and 149.5-, 160- and 168.9-inch wheelbases. Confirm the exact truck and guide revision.
Our Expert Opinion
Compare this with Borla when you want a complete piping-and-muffler kit rather than a muffler-only change. Material, exit position and wheelbase fit are more useful buying criteria than a claimed horsepower figure. Listen to recordings from the same cab and engine, including steady-speed towing. The installation guide specifies 2014–2024 Ram 2500/3500 6.4L and 149.5-, 160- and 168.9-inch wheelbases. Confirm the exact truck and guide revision.
3. MagnaFlow D-Fit 19493 Muffler Kit
A direct-fit muffler replacement for manufacturer-listed Ram 2500/3500 6.4L applications that retains the OEM piping and tailpipe. MagnaFlow currently lists 2014–2026 applications; verify the specific vehicle in its live fitment selector and confirm the Amazon SKU is 19493.
Key Features That Stand Out
- ✓ Design: 3.5-inch main piping.
- ✓ Details: Straight-through muffler construction.
- ✓ Application: Retains the existing tailpipe rather than supplying a full cat-back.
Why We Recommend It
This is the cleaner shortlist option when the existing pipes are sound and only the muffler is being changed. Its narrower scope can simplify the project, but inspect the original pipe condition and listen for the sound you want before ordering.
Performance Analysis
This is an editorial assessment of the listed design and application, not a hands-on test. A model-specific muffler route that keeps useful OEM components. It cannot renew damaged tailpipes or guarantee a drone-free cabin.
Best For
Changing the muffler while keeping serviceable factory piping. MagnaFlow currently lists 2014–2026 applications; verify the specific vehicle in its live fitment selector and confirm the Amazon SKU is 19493.
Our Expert Opinion
This is the cleaner shortlist option when the existing pipes are sound and only the muffler is being changed. Its narrower scope can simplify the project, but inspect the original pipe condition and listen for the sound you want before ordering. MagnaFlow currently lists 2014–2026 applications; verify the specific vehicle in its live fitment selector and confirm the Amazon SKU is 19493.
4. MagnaFlow Street Series 15333 Cat-Back
A stainless Street Series cat-back for listed 6.4L Ram 2500/3500 configurations, using a dual same-side rear exit. The Amazon listing names 2014–2021; the manufacturer catalog covers newer years. Confirm the exact year, cab, bed and installation guide before relying on the broader range.
Key Features That Stand Out
- ✓ Design: A complete cat-back system.
- ✓ Details: Stainless construction and mandrel-bent piping.
- ✓ Application: A dual same-side exit layout.
Why We Recommend It
Choose this for the system layout and a manufacturer-described moderate sound approach. Compare towing noise in a matching cab, and confirm how the exit clears the hitch and other equipment. A Street Series label does not prove a particular cabin sound level on every truck.
Performance Analysis
This is an editorial assessment of the listed design and application, not a hands-on test. A complete system with a distinct exit configuration. Amazon and manufacturer year ranges differ; fitment should be confirmed in writing.
Best For
Owners preferring a complete Street Series system and its exit style. The Amazon listing names 2014–2021; the manufacturer catalog covers newer years. Confirm the exact year, cab, bed and installation guide before relying on the broader range.
Our Expert Opinion
Choose this for the system layout and a manufacturer-described moderate sound approach. Compare towing noise in a matching cab, and confirm how the exit clears the hitch and other equipment. A Street Series label does not prove a particular cabin sound level on every truck. The Amazon listing names 2014–2021; the manufacturer catalog covers newer years. Confirm the exact year, cab, bed and installation guide before relying on the broader range.
5. MagnaFlow 12909 Universal 3.5-inch Muffler
A universal stainless muffler with 3.5-inch inlet and outlet for a professionally fabricated exhaust project. This is not a bolt-on Ram kit. Its 28-inch overall length, offset inlet, center outlet and hanger needs must match the measured truck layout.
Key Features That Stand Out
- ✓ Design: 3.5-inch inlet and outlet.
- ✓ Details: Straight-through perforated core with acoustic packing.
- ✓ Application: A 5-by-11-by-22-inch oval body and 28-inch overall length.
Why We Recommend It
Consider 12909 only when a shop has measured the available space and priced the adapters, welding and hangers. Matching pipe diameter alone is insufficient. Keep the catalytic converters, sensors and other emissions equipment intact and check local sound requirements.
Performance Analysis
This is an editorial assessment of the listed design and application, not a hands-on test. A dimensioned stainless option for a custom layout. Professional fabrication adds cost and fitment responsibility; it is not a ready-to-install cat-back.
Best For
A custom muffler replacement planned by an exhaust fabricator. This is not a bolt-on Ram kit. Its 28-inch overall length, offset inlet, center outlet and hanger needs must match the measured truck layout.
Our Expert Opinion
Consider 12909 only when a shop has measured the available space and priced the adapters, welding and hangers. Matching pipe diameter alone is insufficient. Keep the catalytic converters, sensors and other emissions equipment intact and check local sound requirements. This is not a bolt-on Ram kit. Its 28-inch overall length, offset inlet, center outlet and hanger needs must match the measured truck layout.
Complete Buying Guide for Best Exhaust For Ram 2500 6.4 Hemi
Choose the right Ram 2500 6.4 Hemi exhaust for the job and the exact application. The options above are research starting points; verify current fitment with the manufacturer before buying.
Essential Factors We Consider
A full cat-back and a direct-fit muffler solve different problems. Check cab, bed length, wheelbase, gasoline 6.4L engine, and dual-rear-wheel exclusions. Sound recordings should come from a comparable truck.
- Exact year, engine, trim and vehicle configuration
- Manufacturer-listed application and installation requirements
- Real benefit for the intended use and known limitations
- Warranty, safety, legal and maintenance implications
Budget Planning
Compare the complete installed price of a full system with a muffler-only swap. Corroded clamps, hangers, or pipes can change the labor estimate.
Final Thoughts
Owners seeking quiet highway operation should compare the stock system before choosing a louder option. No specific power increase is guaranteed.
Frequently Asked Questions
Q: What is a cat-back exhaust system for the Ram 2500 6.4 Hemi?
A cat-back replaces the exhaust behind the catalytic converter. Confirm the exact cab, bed, wheelbase, and rear-wheel configuration.
Q: Will installing an aftermarket exhaust void my Ram 2500 6.4 Hemi’s warranty?
Warranty implications depend on the part and claimed failure. Retain receipts and check local emissions and noise rules.
Q: How much horsepower will an aftermarket exhaust add to my Ram 2500 6.4 Hemi?
There is no reliable universal horsepower number. Evaluate fitment, materials, sound, warranty, and any credible test on a matching truck.
Q: What is “drone” and how can I avoid it with my Ram 2500 6.4 Hemi exhaust?
Drone is a sustained low-frequency cabin sound at cruising speed. Listen to a matching 6.4L truck before buying a louder system.
Q: Can I install a new exhaust system on my Ram 2500 6.4 Hemi myself?
Some systems are bolt-on, but corrosion, alignment, and exhaust leaks can complicate the job. Follow the maker’s instructions.
Q: What’s the difference between 409 and 304 stainless steel in exhaust systems?
304 and 409 are different stainless-steel grades. Compare the exact system’s material, climate exposure, warranty, and cost.
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