Exhaust Guide
Best Exhausts for the
2015 – 2024 Chrysler 300: Every Cat-Back & Axle-Back Compared
A complete comparison of cat-back and axle-back exhaust systems for the 2015–2024 Chrysler 300 — covering the 3.6L V6, 5.7L Hemi, and 6.4L 392. Sound profiles, materials, pipe diameter, pricing, and fitment notes from CORSA, Borla, Flowmaster, MBRP, and aFe.
At a Glance
Quick Comparison — Cat-Backs
| Brand / Kit | Sound Profile | Pipe | Material | Fits | Price | |
|---|---|---|---|---|---|---|
| MBRP Cat Back (Aluminized) | Street | 2.5" | Aluminized | 5.7L Hemi |
|
SHOP → |
| MBRP Cat Back (304 SS) | Street | 2.5" | 304 SS | 5.7L Hemi |
|
SHOP → |
| Flowmaster American Thunder | Aggressive | 2.5" | 409 SS | 5.7L Hemi |
|
SHOP → |
| aFe MACH Force-Xp | Aggressive | 2.5" | 304 SS | 3.6L V6 |
|
SHOP → |
| Borla ATAK | ATAK (Loudest) | 2.75" | 304 SS | 5.7L Hemi |
|
SHOP → |
| CORSA Xtreme | Xtreme | 2.75" | 304 SS | 6.2L / 6.4L |
|
SHOP → |
| CORSA Sport Cat-Back | Sport | 2.5" | 304 SS | 5.7L Hemi |
|
SHOP → |
At a Glance
Quick Comparison — Axle-Backs
Important
What to Know Before You Buy
Cat-Back vs Axle-Back
A cat-back replaces the mid-pipe and mufflers from the catalytic converter back. More performance gain, full system upgrade. An axle-back replaces only the mufflers and tips from the rear axle back. Lower cost, easier install, less performance gain. Both install behind the cats and are 50-state emissions legal.
Sound Profile & Drone
Aggressive systems can drone at highway cruise. CORSA’s RSC (Reflective Sound Cancellation) and Borla’s designs reduce drone. Research sound clips and reviews before buying. Drone-free options (CORSA Sport, CORSA Xtreme) cost more but improve daily drivability.
Materials: 304 vs 409 Stainless
304 stainless is more corrosion-resistant and premium. 409 stainless is budget-friendly and still durable. Aluminized is lowest cost; expect shorter life in salt climates. For long-term ownership, 304 SS is the better choice.
Emissions & Warranty
Cat-back and axle-back systems install behind the factory catalytic converters, so they’re 50-state emissions legal. No tuning required. Check manufacturer warranty — CORSA and Flowmaster offer limited lifetime coverage on many systems.
MBRP Cat Back Exhaust System (Aluminized): Chrysler 300 (15–24) / Dodge Charger (15–24)
MBRP’s Aluminized Cat Back is the most affordable cat-back in this guide. 2.5-inch mandrel-bent tubing, street-friendly tone, dual rear exit. Built for 5.7L Hemi Chrysler 300 and Dodge Charger (2015–2024). Bolt-on installation using factory hanger locations.
Aluminized construction keeps cost down but is less corrosion-resistant than 304 stainless. Fine for dry climates; consider the 304 SS version if you drive in salt. MBRP offers a 3-year warranty. Does not fit 3.6L V6 or 6.4L 392.
Pros
- Lowest-priced cat-back in this guide
- Bolt-on; 3-year warranty
- 5.7L Hemi fitment
Cons
- Aluminized steel; less corrosion-resistant
- 5.7L only; excludes V6 and 392
MBRP Cat Back Exhaust System: Chrysler 300 (15–24) / Dodge Charger (15–24)
MBRP Cat Back in full 304 stainless delivers the same street-oriented tone and fitment as the aluminized version, with superior corrosion resistance. 2.5-inch mandrel-bent tubing, dual rear exit. Best value for 304 stainless in this guide. Fits 5.7L Hemi Chrysler 300 and Charger (2015–2024).
3-year warranty. Bolt-on installation. Does not fit 3.6L V6 or 6.4L 392. For 5.7L owners who want 304 SS without the premium price of CORSA or Borla.
Pros
- Best value for 304 stainless
- Full 304 SS; 3-year warranty
- Bolt-on; 5.7L fitment
Cons
- 5.7L only
- No drone-cancellation tech
Flowmaster American Thunder Exhaust System: Chrysler 300 / Dodge Charger 5.7L Hemi 2015 – 2024
Flowmaster American Thunder delivers Flowmaster’s signature deep, aggressive tone for 5.7L Hemi 300 and Charger. Dual 2.5-inch mandrel-bent tubing, Scavenger Series X-pipe, Super 40 mufflers. Polished tips. Aggressive exterior sound with manageable interior volume. Lifetime Limited Warranty.
409 stainless construction; bolt-on using factory hanger locations. Fits 2015–2024 Chrysler 300 5.7L Hemi. One of the best-sounding systems in the mid-price range. Does not fit 3.6L V6 or 6.4L 392.
Pros
- Flowmaster signature deep tone
- Lifetime Limited Warranty
- Bolt-on install
Cons
- 409 SS (not 304)
- 5.7L Hemi only
aFe MACH Force-Xp Cat-Back Exhaust (REAR): Chrysler 300 / Dodge Charger 3.6L V6
aFe MACH Force-Xp Cat-Back delivers an aggressive tone for 3.6L V6 Chrysler 300 and Charger. 2.5-inch 304 stainless, mandrel-bent, dual rear exit. USA-made. Fits 2015–2019 Chrysler 300 3.6L V6. The main cat-back option for V6 owners in this guide.
Full 304 stainless; bolt-on installation. Does not fit 5.7L Hemi or 6.4L 392. Check fitment for 2020+ model years.
Pros
- 304 stainless; USA-made
- Aggressive tone; V6 fitment
- Bolt-on install
Cons
- 3.6L V6 only
- 2015–2019 fitment (verify 2020+)
Borla ATAK Exhaust System: Chrysler 300 / Dodge Charger 5.7L Hemi 2015 – 2023
Borla ATAK is Borla’s loudest, most aggressive sound profile. Full 2.75-inch T-304 stainless, Merge X-Pipe, ATAK mufflers. MDS valve simulators prevent warning lights. High-impact under throttle, refined with no interior drone. Premium build and fitment.
Fits 5.7L Hemi Chrysler 300 and Charger (2015–2023). Does not fit 3.6L V6 or 6.4L 392. For enthusiasts who want maximum volume without cabin drone, Borla ATAK delivers.
Pros
- Borla’s loudest sound profile
- No interior drone; 304 SS
- MDS valve simulators included
Cons
- Premium price
- 5.7L Hemi only
CORSA Xtreme Exhaust System (Polished): Chrysler 300C / Dodge Charger 6.2L & 6.4L Hemi 2015 – 2024
CORSA Xtreme delivers CORSA’s most aggressive sound with zero drone. Patented RSC (Reflective Sound Cancellation) technology cancels resonant frequencies inside the cabin. Deep growl at idle, aggressive roar under acceleration — all without highway drone. 2.75-inch mandrel-bent 304 stainless, 4.5-inch polished Pro-Series tips.
Fits 6.2L Hellcat and 6.4L 392 Chrysler 300C and Charger (2015–2024). Does not fit 3.6L V6 or 5.7L Hemi. Made in USA. The go-to for 392/Hellcat owners who want aggressive sound with daily-driver comfort.
Pros
- Xtreme sound with no cabin drone
- RSC technology; 304 SS
- 392 / Hellcat fitment
Cons
- Premium price
- 6.2L / 6.4L only (no 5.7L)
CORSA Sport Cat-Back Exhaust (REAR): Dodge Charger / Chrysler 300 5.7L Hemi
CORSA Sport Cat-Back strikes the best balance of aggressive sound, drone-free cruising, and build quality. RSC technology eliminates cabin drone. 2.5-inch mandrel-bent 304 stainless, dual rear exit, 4.5-inch polished tips. Power gains, weight reduction. The top pick for 5.7L Hemi 300 and Charger owners who want refined aggression.
Fits 5.7L Hemi Chrysler 300 (2017–2019) and Charger (2017–2020). Does not fit 3.6L V6 or 6.4L 392. Bolt-on, no welding. Limited lifetime warranty with proof of purchase.
Pros
- Best balance of sound and comfort
- RSC drone-free; 304 SS
- Power gains; limited lifetime warranty
Cons
- 5.7L Hemi only; 2017+ 300
- Premium price
CORSA Sport Axle-Back Exhaust (REAR): Dodge Charger / Chrysler 300 5.7L
CORSA Sport Axle-Back brings CORSA’s RSC (Reflective Sound Cancellation) technology to an axle-back format. Aggressive under throttle, drone-free at cruise. 2.5-inch 304 stainless. Fits 5.7L Hemi Chrysler 300 (2017–2019) and Charger (2017–2020). Uses factory tips or optional tip upgrade. The premium axle-back choice for 5.7L daily drivers who want sound without drone.
Axle-back means you retain the stock mid-pipe; less flow gain than a full cat-back. But for 5.7L owners who want a simpler install and CORSA’s drone-free refinement, this is the pick.
Pros
- RSC technology; no cabin drone
- 304 SS; lower cost than cat-back
- 5.7L Hemi fitment
Cons
- Less performance gain than cat-back
- Uses factory tips (or add tips)
CORSA Sport Axle-Back Exhaust Black Tips (REAR): Charger R/T Scat Pack / Chrysler 300 6.4L
CORSA Sport Axle-Back with black 4.5-inch tips for 6.4L 392 Chrysler 300 and Charger. RSC technology eliminates cabin drone. Aggressive under throttle, refined at cruise. 2.75-inch 304 stainless. Fits 2017–2019 Chrysler 300 6.4L 392 and Charger R/T Scat Pack. The premium axle-back for 392 owners.
Axle-back means less performance gain than a full cat-back, but easier install and CORSA’s drone-free refinement. Black tips for a stealth look.
Pros
- RSC technology; no cabin drone
- 304 SS; 4.5" black tips
- 6.4L 392 fitment
Cons
- Premium price for axle-back
- Less performance gain than cat-back
Fitment Reference
Which Kits Fit Your Trim?
| Trim | MBRP | Flowmaster | aFe | Borla ATAK | CORSA Xtreme | CORSA Sport CB | CORSA AB 5.7L | CORSA AB 6.4L |
|---|---|---|---|---|---|---|---|---|
| 300 3.6L V6 | ✗ | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| 300 5.7L Hemi | ✓ | ✓ | ✗ | ✓ | ✗ | ✓ | ✓ | ✗ |
| 300 6.4L 392 | ✗ | ✗ | ✗ | ✗ | ✓ | ✗ | ✗ | ✓ |
✓ = Confirmed • ✗ = Excluded • CB = Cat-Back • AB = Axle-Back
Common Questions
Frequently Asked Questions
What’s the difference between cat-back and axle-back exhausts?
A cat-back replaces everything from the catalytic converter to the tips (mid-pipe + mufflers + tips). More performance gain, full system. An axle-back replaces only the mufflers and tips from the rear axle back. Lower cost, easier install, less performance gain. Both are 50-state emissions legal.
Will an aftermarket exhaust void my warranty?
Cat-back and axle-back systems install behind the factory catalytic converters and do not affect 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 typically add 5–15 HP and similar torque by reducing backpressure and improving flow. Axle-backs add less (often 2–5 HP) since they don’t replace the mid-pipe.
What causes exhaust drone and how do I avoid it?
Drone is resonance at certain RPMs that amplifies inside the cabin. CORSA’s RSC technology and Borla’s designs reduce or eliminate it. Research sound clips and reviews before buying.
304 vs 409 stainless steel: which is better?
304 stainless is more corrosion-resistant and premium. 409 stainless is budget-friendly and durable. Aluminized is lowest cost; expect shorter life in harsh environments.
I have a 6.4L 392 Chrysler 300. What exhaust fits?
Cat-backs: CORSA Xtreme (6.2L/6.4L). Axle-backs: CORSA Sport Axle-Back with black tips (6.4L). 5.7L systems do not fit the 6.4L 392.
Ready to Upgrade Your Chrysler 300 Exhaust?
Compare cat-backs and axle-backs above, pick the right fit for your trim and budget, and order with confidence. Need help? Contact us.
