Exhaust Guide
Best Exhausts for the
2011 – 2014 Chrysler 300: Every Cat-Back Compared
A complete comparison of cat-back exhaust systems for the 2011–2014 Chrysler 300 (LD platform) — covering the 3.6L V6, 5.7L Hemi, and 6.4L 392 SRT8. Sound profiles, materials, pipe diameter, pricing, and fitment notes from CORSA, Borla, Flowmaster, MagnaFlow, and JBA.
At a Glance
Quick Comparison
| Brand / Kit | Sound Profile | Pipe | Material | Fits | Price | |
|---|---|---|---|---|---|---|
| JBA Cat-Back | Sport | 2.5" | 409 SS | 5.7L Hemi |
|
SHOP → |
| Flowmaster FloxFX | Moderate | 2.5" | 409 SS | 5.7L Hemi |
|
SHOP → |
| Flowmaster American Thunder | Aggressive | 2.5" | 409 SS | 5.7L Hemi |
|
SHOP → |
| MagnaFlow Cat-Back | Street | 2.5" | 304 SS | 5.7L Hemi | $1,475 | SHOP → |
| Borla Cat-Back 5.7L | S-Type | 2.5" | 304 SS | 5.7L Hemi |
|
SHOP → |
| Borla Cat-Back 3.6L V6 | Sport | 2.5" | 304 SS | 3.6L V6 |
|
SHOP → |
| CORSA Sport 5.7L | Sport | 2.5" | 304 SS | 5.7L Hemi |
|
SHOP → |
| CORSA Extreme 5.7L | Xtreme | 2.5" | 304 SS | 5.7L Hemi |
|
SHOP → |
Important
What to Know Before You Buy
Cat-Back vs Axle-Back
This generation has cat-back only options. A cat-back replaces the mid-pipe and mufflers from the catalytic converter back. Full system upgrade, more performance gain. Fitment varies by engine — 3.6L V6, 5.7L Hemi, and 6.4L SRT8 each have dedicated systems.
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 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. JBA and Flowmaster use 409; Borla, MagnaFlow, and CORSA use 304. For long-term ownership in salt climates, 304 SS is the better choice.
Emissions & Warranty
Cat-back systems install behind the factory catalytic converters, so they’re 50-state emissions legal. No tuning required. Borla offers Million-Mile Warranty; CORSA and Flowmaster offer limited lifetime coverage on many systems.
JBA Cat-Back Exhaust System: Chrysler 300 & Dodge Charger 5.7L Hemi 2011 – 2014
JBA’s Cat-Back Exhaust is the most affordable option in this guide. The 2.5-inch mandrel-bent 409 stainless system delivers a sport-oriented tone for 5.7L Hemi 300 and Charger (2011–2014). Dual rear exit with polished tips. USA-made with a reputation for fitment. Bolt-on installation.
409 stainless keeps cost down but is less corrosion-resistant than 304. Fits 2011–2014 Chrysler 300 5.7L Hemi (RWD and AWD). Does not fit 3.6L V6 or 6.4L SRT8 — JBA offers separate SKUs for those.
Pros
- Lowest-priced cat-back in this guide
- USA-made; bolt-on install
- Sport sound; 5.7L Hemi fitment
Cons
- 409 SS; less corrosion-resistant
- 5.7L only
Flowmaster FloxFX Exhaust System: Chrysler 300 / Dodge Charger 5.7L Hemi 2011 – 2014
Flowmaster FloxFX delivers a moderate, street-friendly tone at a lower price than American Thunder. 2.5-inch mandrel-bent 409 stainless, X-pipe, and Flowmaster mufflers. Polished tips. Best value for 5.7L Hemi 300 and Charger owners who want Flowmaster sound without the premium.
Fits 2011–2014 Chrysler 300 5.7L Hemi (RWD and AWD). Bolt-on using factory hanger locations. Good entry point before stepping up to American Thunder or Borla.
Pros
- Best value; moderate tone
- Bolt-on; 409 SS
- 5.7L Hemi fitment
Cons
- 409 SS (not 304)
- Milder than American Thunder
Flowmaster American Thunder Exhaust System: Chrysler 300 / Dodge Charger 5.7L Hemi 2011 – 2014
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 2011–2014 Chrysler 300 5.7L Hemi. Best sound in the mid-price range for enthusiasts who want Flowmaster’s classic tone.
Pros
- Flowmaster signature deep tone
- Lifetime Limited Warranty
- Bolt-on install
Cons
- 409 SS (not 304)
- 5.7L Hemi only
MagnaFlow Cat-Back Exhaust: Chrysler 300C 5.7L 2005 – 2014
MagnaFlow Street Series Cat-Back delivers a bold, resonant tone with dyno-proven performance. 2.5-inch mandrel-bent stainless piping, three straight-through mufflers, dual split rear exit with 4-inch polished rolled-edge tips. Moderate exterior and mild interior sound — the perfect balance for daily drivers.
Full 304 stainless; limited lifetime construction warranty. Fits 2005–2014 Chrysler 300C 5.7L (spans both LX and LD generations). 3D-scanned for precise fitment; no cutting or welding.
Pros
- 304 stainless; limited lifetime warranty
- Moderate exterior, mild interior
- Fits 2005–2014 (LX + LD)
Cons
- 5.7L only; no V6 or SRT8
- Milder than Flowmaster/Borla
Borla Cat-Back Exhaust: Dodge Charger / Chrysler 300 5.7L Hemi 2011 – 2014
Borla Cat-Back with S-Type sound profile delivers a bold, aggressive exhaust note without interior drone. 2.5-inch mandrel-bent T-304 stainless, Merge X-Pipe. Designed to work with factory exhaust bezels; does not include tips for an OEM+ look. Million-Mile Warranty. Fits all R/T trim levels (AWD and RWD).
Best overall pick for 5.7L Hemi 300 and Charger owners who want Borla quality and sound. Performance-minded daily drivers. Does not fit 3.6L V6 or 6.4L SRT8.
Pros
- Bold tone without cabin drone
- Million-Mile Warranty; 304 SS
- RWD and AWD fitment
Cons
- No tips included (uses factory bezels)
- 5.7L only
Borla Cat-Back Exhaust: Dodge Charger / Chrysler 300 3.6L V6 2011 – 2014
Borla Cat-Back for 3.6L V6 delivers an exciting, aggressive tone while maintaining comfort inside the cabin with no unwanted drone. Merge X-Pipe improves exhaust flow, scavenging, and throttle response. T-304 stainless. Fits rear-wheel-drive 300 and Charger with automatic or manual transmission.
The premium choice for 3.6L V6 owners. Does not fit 5.7L Hemi or 6.4L SRT8. Million-Mile Warranty.
Pros
- Aggressive tone; zero interior drone
- 304 SS; Million-Mile Warranty
- 3.6L V6 RWD fitment
Cons
- Premium price
- V6 RWD only (no AWD)
CORSA Sport Cat-Back Exhaust: Chrysler 300C 5.7L Hemi 2011 – 2014
CORSA Sport strikes the best balance of aggressive sound, drone-free cruising, and build quality. RSC (Reflective Sound Cancellation) technology eliminates cabin drone. 2.5-inch mandrel-bent 304 stainless. Power gains, weight reduction, factory-like fit and finish. Bolt-on, no welding.
Fits 2011–2014 Chrysler 300C 5.7L Hemi. Does not fit 3.6L V6 or 6.4L SRT8. Lifetime warranty with proof of purchase. The top pick for 5.7L owners who want refined aggression.
Pros
- RSC drone-free; 304 SS
- Best balance of sound and comfort
- Lifetime warranty
Cons
- Premium price
- 5.7L only
CORSA Extreme Cat-Back Exhaust: Chrysler 300C 5.7L Hemi 2011 – 2014
CORSA Extreme delivers CORSA’s most aggressive sound with zero drone. RSC technology cancels resonant frequencies inside the cabin. Deep growl at idle, roaring bark under acceleration. 2.5-inch mandrel-bent 304L stainless, +61% flow over stock, up to 10 HP / 13 lb-ft gains.
Fits 2011–2014 Chrysler 300C 5.7L Hemi. Made in USA. The go-to for aggressive sound with daily-driver comfort. Also available in black tips.
Pros
- Xtreme sound with no cabin drone
- RSC technology; 304 SS
- Measurable power gains
Cons
- Premium price
- 5.7L Hemi only
Fitment Reference
Which Kits Fit Your Trim?
| Trim | JBA | Flowmaster | MagnaFlow | Borla 5.7L | Borla V6 | CORSA Sport | CORSA Extreme |
|---|---|---|---|---|---|---|---|
| 300 3.6L V6 | ✗ | ✗ | ✗ | ✗ | ✓ | ✗ | ✗ |
| 300C 5.7L Hemi | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ |
| 300 SRT8 6.4L | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ | ✗ |
✓ = Confirmed • ✗ = Excluded (CORSA Sport SRT8 14463 fits 6.4L; see product page)
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. More performance gain, full system. For 2011–2014 Chrysler 300, only cat-back systems are commonly available.
Will an aftermarket exhaust void my warranty?
Cat-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. CORSA and Borla publish dyno results.
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. For long-term ownership in salt climates, 304 SS is the better choice.
I have a 6.4L SRT8. What exhaust fits?
CORSA offers a Sport Cat-Back (14463) for 2012–2014 Chrysler 300 SRT8 6.4L 392. JBA also offers a 6.4L-specific kit. 5.7L and 3.6L systems do not fit the 6.4L.
Ready to Upgrade Your Chrysler 300 Exhaust?
Compare cat-backs above, pick the right fit for your engine and budget, and order with confidence. Need help? Contact us.
