Exhaust Guide
Best Exhausts for the
2019 – 2026 Ram 3500: Every Cat-Back Compared
A complete comparison of cat-back and filter-back exhaust systems for the 2019–2026 Ram 3500 — covering the 6.4L 392 Hemi and 6.7L Cummins diesel. Sound profiles, materials, pricing, and fitment notes from MBRP, Flowmaster, Borla, MagnaFlow, and Gibson.
At a Glance
Quick Comparison
| Brand / Kit | Sound Profile | Pipe | Material | Fits | Price | |
|---|---|---|---|---|---|---|
| MBRP 6.4L Aluminized | Street | 4" | Aluminized | 6.4L 392 |
|
SHOP → |
| MagnaFlow Filter-Back 6.7L | Moderate | 5" | Stainless | 6.7L Cummins | $548 | SHOP → |
| Gibson Dual Extreme | Aggressive | 2.5" | Aluminized | 6.4L 392 |
|
SHOP → |
| Flowmaster Flow FX | Moderate | 3" | 409 SS | 6.4L 392 | $641 | SHOP → |
| Flowmaster American Thunder | Aggressive | 3" | 409 SS | 6.4L 392 (3500) |
|
SHOP → |
| Borla S-Type | S-Type | 3" | 304 SS | 6.4L 392 | $1,080 | SHOP → |
| MagnaFlow Street 6.4L | Moderate | 4" | 304 SS | 6.4L 392 | $1,328 | SHOP → |
Important
What to Know Before You Buy
Engine-Specific Fitment
The 2019–2026 Ram 3500 uses 6.4L 392 Hemi (gasoline) and 6.7L Cummins diesel. Exhaust fitment is engine-specific. 6.4L systems do not fit 6.7L; diesel filter-back systems do not fit gasoline. Verify your engine before ordering.
Cat-Back vs Filter-Back
A cat-back replaces exhaust from the catalytic converter back (gasoline). A filter-back replaces exhaust from the diesel particulate filter back (6.7L Cummins). Both are 50-state emissions legal.
Cab & Dually Config
Borla S-Type fits all cab/bed configs except dually. MBRP, Flowmaster, and MagnaFlow 6.4L systems fit Ram 3500 SRW. Gibson systems fit most trims. Verify cab/bed length for aFe Rebel (Crew Cab Short Bed only).
Materials: 304 vs 409 vs Aluminized
304 stainless is most corrosion-resistant. 409 stainless is a step up from aluminized. Aluminized is budget-friendly. Borla and MagnaFlow use 304; Flowmaster and MBRP offer 409.
MBRP Cat Back Exhaust System (Single Side Exit, Aluminized): Ram 6.4L 392 2500 & 3500
MBRP Single Side Exit Aluminized delivers the lowest price for 6.4L 392. 4-inch mandrel-bent tubing, single side exit. Street tone. Fits 2019–2026 Ram 2500 and 3500 6.4L. Direct bolt-on. 3-year warranty.
Ideal for budget-conscious 6.4L owners. Best suited for dry climates; aluminized is less corrosion-resistant than stainless.
Pros
- Lowest price for 6.4L
- 4" mandrel-bent; street tone
- Fits 2500 & 3500
Cons
- Aluminized (not stainless)
MagnaFlow Filter-Back Performance Exhaust System: Ram 3500 6.7L 2019–2025
MagnaFlow Pro Series Filter-Back delivers strong value for 6.7L Cummins. 5-inch stainless, refined yet aggressive tone. Direct-fit from DPF back. Fits 2019–2025 Ram 3500 6.7L. Improves exhaust flow and turbo response.
Ideal for diesel owners who want a performance upgrade. Best value for 6.7L in this guide.
Pros
- 5" stainless; direct-fit
- Refined tone; improved flow
- 6.7L Cummins
Cons
- 6.7L only
Gibson Dual Extreme Cat-Back Perf Exhaust Aluminized: Ram 2500/3500 6.4L 392
Gibson Dual Extreme delivers an aggressive tone with dual rear exit. 2.5-inch mandrel-bent, aluminized tubing. Fits 2014–2024 Ram 2500 and 3500 6.4L. Dyno-tested 15–20 HP gains. Lifetime Limited Warranty.
Ideal for 6.4L owners who want dual rear exit and strong sale pricing. Minimal interior drone.
Pros
- Dual rear exit; aggressive tone
- Lifetime Warranty
- Strong sale price
Cons
- Aluminized (not stainless)
Flowmaster Flow FX Cat-Back Exhaust System: Ram 2500 / 3500 6.4L
Flowmaster Flow FX delivers the best balance of sound, value, and fitment for 6.4L. 3-inch mandrel-bent 409 stainless, Flow FX muffler. Deep exterior tone, moderate interior. Fits Ram 2500 and 3500 6.4L. Lifetime Limited Warranty.
Ideal for 2019+ 6.4L owners who want a versatile, durable upgrade. Fits all cab configs.
Pros
- 409 stainless; Lifetime Warranty
- Moderate tone; fits 2500 & 3500
- Direct bolt-on
Cons
- 6.4L only
Flowmaster American Thunder Exhaust System: Ram 6.4L 392 3500
Flowmaster American Thunder is engineered specifically for Ram 3500 6.4L 392. 50 Series HD muffler, 3.5-inch inlet, dual 3-inch tailpipes. Deep, moderate exterior tone with reduced interior resonance. Dual rear or side exit options. Lifetime Limited Warranty.
Ideal for Ram 3500 6.4L owners who want Flowmaster’s signature tone. 3500-specific fitment.
Pros
- 3500-specific; 409 stainless
- Dual rear or side exit
- Lifetime Warranty
Cons
- 6.4L 3500 only; premium price
Borla S-Type Cat-Back Exhaust System (Polished Tip): Ram 6.4L 392 2019 – 2025 (2500 & 3500)
Borla S-Type delivers drone-free cruising with aggressive sound under acceleration. 304 stainless, mandrel-bent. Uses factory transition pipe; fits all cab/bed except dually. Million-Mile Warranty. 2019–2026 Ram 2500 and 3500 6.4L.
Ideal for daily drivers who want maximum sound quality without cabin drone.
Pros
- 304 stainless; Million-Mile Warranty
- Drone-free; refined at cruise
- Fits 2500 & 3500 (excl. dually)
Cons
- Excludes dually; premium price
MagnaFlow Street Series Cat-Back Perf Exhaust System: 14-24 RAM 2500 / 3500 6.4L 392 HEMI
MagnaFlow Street Series delivers premium 304 stainless with 4-inch mandrel-bent tubing. Deep, resonant tone. Direct-fit for 2014–2025 Ram 2500 and 3500 6.4L. Single passenger-side rear exit with 5-inch polished tip. 3D scanning ensures perfect fitment.
Ideal for owners who want the best corrosion resistance and MagnaFlow craftsmanship.
Pros
- 304 stainless; 4" mandrel-bent
- Deep tone; direct-fit
- Fits 2500 & 3500
Cons
- Premium price
Fitment Reference
Which Kits Fit Your Engine?
| Engine | MBRP Al | MagnaFlow 6.7L | Gibson | Flow FX | Flow AT | Borla | MagnaFlow 6.4L |
|---|---|---|---|---|---|---|---|
| 6.7L Cummins | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| 6.4L 392 | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ | ✓ |
✓ = Confirmed • ✗ = Excluded • Borla excludes dually
Common Questions
Frequently Asked Questions
What’s the difference between cat-back and filter-back?
A cat-back replaces exhaust from the catalytic converter back (gasoline). A filter-back replaces exhaust from the diesel particulate filter back (6.7L Cummins). Both are 50-state legal.
Will an aftermarket exhaust void my warranty?
Cat-back and filter-back systems install behind emissions equipment. They generally do not void the vehicle warranty. Check with your dealer if concerned.
Do exhaust systems add horsepower?
Yes. Cat-back systems reduce backpressure. Expect modest gains (5–15 HP / lb-ft) and improved throttle response. Diesel filter-backs can improve turbo spool.
What causes exhaust drone and how do I avoid it?
Drone is resonance at certain RPMs. Borla S-Type is designed for drone-free cruising. Flowmaster American Thunder and Gibson Dual Extreme are more aggressive. Flowmaster Flow FX and MagnaFlow offer moderate tones.
304 vs 409 stainless: which is better?
304 stainless is more corrosion-resistant. 409 stainless is a step up from aluminized. Aluminized is budget-friendly; shorter life in salt climates.
I have a 2019 Ram 3500 6.4L. What fits?
MBRP, Flowmaster Flow FX, Flowmaster American Thunder, Borla S-Type, Gibson Dual Extreme, and MagnaFlow Street 15333 all fit 2019+ Ram 3500 6.4L. Borla excludes dually. For 6.7L Cummins, MagnaFlow Filter-Back 17912 is the only option in this guide.
Ready to Upgrade Your Ram 3500 Exhaust?
Compare systems above, pick the right fit for your engine (6.4L or 6.7L), and order with confidence. Need help? Contact us.
