Top 10 Best Exhaust for 6.4 Hemi Engines Uncovered

The best exhaust for 6.4 hemi engines plays a crucial role in enhancing power output, fuel efficiency, and overall vehicle acoustics. Selecting the optimal exhaust system involves understanding advanced materials like stainless steel or aluminized steel that resist corrosion while improving heat dispersion. Innovations in exhaust design and technology impact back pressure reduction and sound tuning, essential for maximizing the 6.4 hemi’s V8 potential.

Close considerations of fitment, dual versus single exhaust setups, and emission standards also influence performance gains and driving experience. As enthusiasts continuously seek to balance aggression with efficiency, identifying the perfect exhaust demands detailed awareness of product benefits and implementation challenges.

Delve deeper into these critical aspects to uncover which exhaust systems truly elevate the 6.4 hemi’s capabilities and which features deliver the most convincing advantages.

Best Exhaust for 6.4 Hemi: Top Picks for 2026

ImageProductBuy
Top Picks- 1
MagnaFlow Performance Exhaust Muffler Kit 19493
MagnaFlow Performance Exhaust Muffler Kit 19493
Best for: Performance muffler upgrade
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Top Picks- 2
BORLA 140851BC Cat-Back Performance Exhaust System for 2019 Ram 2500
BORLA 140851BC Cat-Back Performance Exhaust System for 2019 Ram 2500
Best for: Heavy-duty truck owners
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Top Picks- 3
BORLA 140641 Cat-Back System for 2015-2023 Dodge Challenger SRT 392/392
BORLA 140641 Cat-Back System for 2015-2023 Dodge Challenger SRT 392/392
Best for: Muscle car enthusiasts
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Top Picks- 4
Flowmaster 717930 FlowFX Cat-Back Exhaust Kit Single Side Exit 3.5
Flowmaster 717930 FlowFX Cat-Back Exhaust Kit Single Side Exit 3.5
Best for: Single side exit preference
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Top Picks- 5
BD Diesel 1041463 Exhaust Manifold Kit Dodge/Ram 1500/2500/3500 09-22 5.7L
BD Diesel 1041463 Exhaust Manifold Kit Dodge/Ram 1500/2500/3500 09-22 5.7L
Best for: Diesel engine upgrade
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1. MagnaFlow Performance Exhaust Muffler Kit 19493

MagnaFlow Performance Exhaust Muffler Kit 19493

Best for: Direct-fit for 2014-2026 Ram 6.4L.

MagnaFlow Performance Exhaust Muffler Kit 19493 features a straight-through perforated core with two-stage acoustic packing, enabling it to maintain high exhaust velocity for superior sound clarity and performance enhancement.

This kit includes all necessary hardware for seamless OEM integration with 6.4L engines in Ram 2500 and 3500 models from 2014 to 2026. Its design supports enhanced exhaust flow while delivering the recognizable throaty MagnaFlow exhaust tone, backed by a limited lifetime construction warranty.

Pros

  • Straight-through muffler design improves exhaust velocity
  • Two-stage acoustic packing delivers resonant sound
  • Direct-fit kit ensures easy OEM system integration
  • Includes hardware kit for comprehensive installation

Cons

  • Compatibility limited specifically to Ram 2500 and 3500 6.4L models

Ideal for Ram owners wanting a direct replacement muffler that enhances the engine’s bold sound and flow characteristics. Its fitment ensures an easy swap, making it perfect for those seeking both performance and OEM compatibility.

2. BORLA 140851BC Cat-Back Performance Exhaust System for 2019 Ram 2500

BORLA 140851BC Cat-Back Performance Exhaust System for 2019 Ram 2500

Best for: T-304 stainless steel cat-back system.

BORLA 140851BC Cat-Back Performance Exhaust System uses premium T-304 stainless steel material to provide superior durability and corrosion resistance, ensuring long lifespan and consistent exhaust flow for 2019 Ram 2500 trucks.

It features all welded construction along with bolt-on installation, allowing a straightforward upgrade without modifications. Manufactured in the USA, the system comes with a no-drone guarantee, ensuring a smooth exhaust tone free from annoying high-frequency drone on highways.

Pros

  • Constructed from corrosion-resistant T-304 stainless steel
  • All welded construction promotes durability
  • Bolt-on design enables straightforward installation
  • No drone assurance for comfortable highway driving

Cons

  • Warranty coverage is limited to 30 days from purchase

An excellent option for 2019 Ram 2500 drivers wanting a durable, easy-to-install cat-back exhaust that combines performance and comfort. Perfect for those prioritizing a low drone experience while gaining a robust stainless steel build.

3. BORLA 140641 Cat-Back System for 2015-2023 Dodge Challenger SRT 392/392

BORLA 140641 Cat-Back System for 2015-2023 Dodge Challenger SRT 392/392

Best for: Cat-back for Dodge Challenger 2015-2023.

BORLA 140641 Cat-Back System crafted in T-304 stainless steel delivers an ultra-durable, corrosion-resistant exhaust upgrade that ensures solid performance and lifespan for Dodge Challenger SRT 392 models from 2015 to 2023.

This cat-back exhaust weighs 59 pounds and features a fully welded design for enhanced structural integrity. It installs with bolt-on convenience and carries a manufacturer’s warranty, providing peace of mind with its robust construction and fitment.

Pros

  • T-304 stainless steel resists wear and corrosion
  • Bolt-on installation eliminates need for custom fitting
  • Full welded construction enhances strength
  • Supported by manufacturer warranty for reliability

Cons

  • Designed exclusively for Dodge Challenger SRT 392, not compatible with other models

Perfect for Dodge Challenger SRT 392 owners seeking a durable performance exhaust with hassle-free installation. Ideal for enthusiasts looking to improve exhaust flow and sound without compromising durability.

4. Flowmaster 717930 FlowFX Cat-Back Exhaust Kit Single Side Exit 3.5

Flowmaster 717930 FlowFX Cat-Back Exhaust Kit Single Side Exit 3.5

Best for: FlowFX cat-back with 3.5-inch tubing.

Flowmaster 717930 FlowFX Cat-Back Exhaust Kit utilizes 3.50-inch mandrel bent 16-gauge 409 stainless steel tubing to maximize exhaust flow while enhancing exhaust durability against corrosion and wear.

Delivering up to 13 horsepower and 15 lb-ft torque gains, this kit includes a black ceramic coated 5-inch tip for aggressive styling, complete hardware, and factory-style hangers that align with stock mounting points. It features a straight-through muffler design that produces a deep moderate tone.

Pros

  • Mandrel bent 3.5-inch tubing improves exhaust velocity
  • 16-gauge 409 stainless steel resists corrosion
  • Includes hardware and factory-styled hangers for easy installation
  • Black ceramic coated tip provides a custom look

Cons

  • May not appeal to buyers seeking louder or more aggressive exhaust tones

Designed for truck owners who want a reliable horsepower boost paired with moderate exhaust volume. The straightforward installation and durable materials make it great for daily drivers desiring enhanced performance with style.

5. BD Diesel 1041463 Exhaust Manifold Kit Dodge/Ram 1500/2500/3500 09-22 5.7L

BD Diesel 1041463 Exhaust Manifold Kit Dodge/Ram 1500/2500/3500 09-22 5.7L

Best for: High-silicon ductile iron manifold kit.

BD Diesel 1041463 Exhaust Manifold Kit features construction from high-silicon ductile iron, which improves heat resistance and structural durability in demanding engine conditions for Dodge and Ram models with 5.7L engines.

The kit includes longer fasteners with spacers and all necessary gaskets, allowing a reliable and secure manifold fitting. Its painted finish provides initial rust protection, though it does not fit 2019 and newer DT body styles.

Pros

  • High-silicon ductile iron offers enhanced heat durability
  • Comes with all gaskets and long fasteners for secure installation
  • Painted exterior adds corrosion resistance
  • Comprehensive kit reduces need for additional parts

Cons

  • Incompatible with 2019+ DT body style Ram models

Suitable for owners needing a durable manifold upgrade that can withstand high-temperature demands. Particularly targeted at pre-2019 Ram trucks with 5.7L engines for reliable exhaust manifold replacement.

6. TOTALFLOW 314633 14 Inch Muffler 09-18 1500 Direct Fit Exhaust

TOTALFLOW 314633 14 Inch Muffler 09-18 1500 Direct Fit Exhaust

Best for: 409 Stainless Steel 14-inch muffler.

TOTALFLOW 314633 Exhaust Muffler measures 14 inches and is crafted from robust 409 stainless steel, which extends its corrosion resistance and helps it maintain a smooth, deep exhaust tone for Dodge Ram 1500s from 2009 to 2018.

This fully MIG-welded muffler supports factory dual tailpipe options and delivers sound quality that balances depth with smoothness. Its direct-fit design facilitates easy installation without modifications, tailored especially for 5.7L equipped Dodge Ram 1500 trucks.

Pros

  • Durable 409 stainless steel construction
  • Fully MIG welded for long-lasting strength
  • Direct fit supports factory dual tailpipes
  • Produces a smooth, deep exhaust tone

Cons

  • Specifically designed for Dodge Ram 1500; not compatible with other models

Best suited for Dodge Ram 1500 owners with 5.7L engines seeking a factory-compatible muffler that enhances sound quality and longevity. Its straightforward fit is ideal for those wanting a no-hassle replacement.

7. MBRP 2010 Dodge 2500/3500 Cummins 6.7L Filter Back P Series

MBRP 2010 Dodge 2500/3500 Cummins 6.7L Filter Back P Series

Best for: Aluminized steel filter-back exhaust.

MBRP Filter Back P Series exhaust crafted from aluminized steel features a 4-inch tubing diameter optimized for efficient exhaust flow and fuel economy improvements in 2010 Dodge 2500/3500 Cummins 6.7L trucks.

This single side-exit system lacks a muffler and delivers a rich, mellow exhaust note suitable for drivers who want improved sound without aggressive volume. Installation can be completed using common hand tools, encouraging straightforward upgrades.

Pros

  • Aluminized steel resists corrosion effectively
  • 4-inch tubing size enhances exhaust flow
  • Can improve fuel economy by 1-2 MPG
  • Simple installation with common hand tools

Cons

  • No included muffler results in louder exhaust noise levels

Ideal for Cummins 6.7L owners looking to improve fuel economy and install a straightforward single exit system that enriches the exhaust tone without excessive complexity or noise reduction.

8. Flowmaster 717887 FlowFX Cat-back Exhaust System

Flowmaster 717887 FlowFX Cat-back Exhaust System

Best for: Full stainless steel FlowFX cat-back system.

Flowmaster 717887 FlowFX Cat-Back Exhaust System includes mandrel-bent stainless steel tubing paired with a large 4.50-inch black ceramic coated tip, offering both endurance against corrosion and a stylish aftermarket appearance.

Featuring a straight-through performance muffler, this system guarantees deep, powerful sound without drone using factory hanger locations for easy mounting. Quick installation is supported with a lifetime limited warranty, ensuring dependable use over time.

Pros

  • Built with all stainless steel for corrosion resistance
  • Mandrel-bent tubing preserves exhaust flow
  • Large 4.50-inch ceramic coated tip for durability and style
  • Lifetime limited warranty provides peace of mind

Cons

  • Slightly heavier construction might impact weight-sensitive applications

Perfect for truck owners seeking a durable, aesthetic cat-back exhaust that delivers rich sound and long-term reliability. Fits well for those wanting quick installation with factory-aligned hangers.

9. Flowmaster 717860 FlowFX Cat-Back Exhaust Kit Dual 2.5 Inch 409

Flowmaster 717860 FlowFX Cat-Back Exhaust Kit Dual 2.5 Inch 409

Best for: Dual 2.5-inch exit FlowFX cat-back kit.

Flowmaster 717860 FlowFX Cat-Back System utilizes 16-gauge mandrel-bent 409 stainless steel tubing with dual 2.5-inch black ceramic coated exhaust tips, improving exhaust flow and giving a bold sound both inside and outside the vehicle.

This system includes all necessary hardware and clears the factory spare tire for a clean factory-like fitment. The straight-through muffler design produces a deep, powerful tone while using original factory hanger locations for simple installation.

Pros

  • 409 stainless steel tubing ensures long-term corrosion resistance
  • Dual black ceramic coated tips add aggressive styling
  • Fit designed to clear spare tire and use factory hangers
  • Includes all hardware for easy assembly

Cons

  • At 58 pounds, it may add notable weight to the rear end

Well suited for Ram trucks needing an impactful dual-exit exhaust with a deep tone. Great for owners who want easy install with no clearance issues while enhancing both appearance and sound.

10. Flowmaster 717835 FlowFX Direct Fit Muffler

Flowmaster 717835 FlowFX Direct Fit Muffler

Best for: Direct-fit FlowFX muffler with aggressive tone.

Flowmaster 717835 FlowFX Direct Fit Muffler delivers a moderate to aggressive exhaust tone, enhancing vehicle sound without requiring complex modifications thanks to its direct-fit design for quick installation.

It is constructed from 409 stainless steel delivering durability and rust resistance. The muffler is offered with a limited lifetime warranty and mounts easily as a direct replacement on compatible Dodge Ram 1500 models.

Pros

  • Direct-fit installation reduces labor and modification needs
  • 409 stainless steel construction extends lifespan
  • Produces moderate to aggressive exhaust tone balance
  • Limited lifetime warranty supports product reliability

Cons

  • Can be too loud for users preferring a quieter exhaust note

An excellent choice for Dodge Ram 1500 drivers seeking enhanced exhaust sound with minimal installation effort. Suitable for those desiring a more aggressive tone while maintaining OEM fitment standards.

How to Choose the Right Exhaust for 6.4 Hemi

Material quality and durability

Selecting the right material for a 6.4 Hemi exhaust centers on durability and resistance to corrosion. Stainless steel stands out for its superior rust resistance and longevity compared to aluminized steel, which, while more affordable, is prone to wear and corrosion under harsh conditions. The quality of welds significantly influences lifespan; clean, uniform weld beads without gaps or cracks ensure structural integrity and prevent leaks over time.

Buyers prioritizing long-term durability should choose a high-grade stainless steel exhaust with professional-grade TIG welds, guaranteeing rust resistance and strength that withstands daily driving and extreme environments.

Performance and power gains

When prioritizing performance gains, the exhaust system’s design directly impacts horsepower and torque improvements. Larger diameter pipes, typically between 2.5 to 3 inches for a 6.4 Hemi, allow more efficient gas flow, reducing backpressure and boosting engine output. Equally important is the flow rate, where mandrel-bent tubing maintains a consistent diameter to optimize exhaust velocity.

Mufflers must balance sound attenuation with minimal flow restriction; high-performance mufflers provide aggressive tone without sacrificing horsepower. For drivers seeking noticeable power enhancement, a stainless steel exhaust with mandrel bends, 3-inch piping, and free-flow mufflers delivers the best mix of sound and performance.

Fitment and compatibility

Ensuring proper fitment for the 6.4 Hemi is critical to avoid installation headaches and performance issues. Exhaust systems tailored specifically for the 6.4 Hemi model guarantee exact alignment with the factory mounts and connectors, unlike generic universal kits that often require modifications. While OEM parts maintain factory precision and ease of installation, aftermarket exhausts designed to match 6.4 Hemi dimensions frequently offer better performance options.

Buyers who prefer a hassle-free installation and reliable fit should opt for exhausts explicitly engineered for the 6.4 Hemi engine, balancing compatibility with enhanced capabilities.

Sound and noise levels

The sound profile of the exhaust system is a key attribute when upgrading a 6.4 Hemi, as the engine naturally produces a deep, aggressive tone. Choosing an exhaust note depends on personal preference and legality — from subtle rumble to loud growl. Street-legal options comply with noise regulations while delivering a commanding sound.

Adjustable or dual-mode exhausts provide flexibility, allowing drivers to switch between quiet daily driving and more assertive performance tones. Consumers should select exhausts that meet local noise standards and offer sound adjustability to enjoy the truck’s power without risking violations or discomfort.

Warranty and brand reputation

Warranty and brand reputation should influence the purchase decisively. A strong manufacturer warranty covering materials and workmanship protects your investment against premature failure. Brands with proven experience in crafting exhausts for the 6.4 Hemi maintain high quality standards and provide responsive customer support, easing any concerns post-purchase.

Buyers should prioritize exhaust systems that come with at least a 3 to 5-year warranty and are backed by manufacturers known for reliable products and accessible support, ensuring confidence and peace of mind.

Which Should You Choose?

  • If you want a deep, resonant sound with a straightforward upgrade, choose a muffler kit that features a straight-through design for enhanced exhaust flow and iconic tone.
  • If durability and a polished appearance are your priorities, choose a stainless steel cat-back system with welded construction and bolt-on installation.
  • If maximizing horsepower and torque gains matters most, choose a mandrel-bent exhaust with a larger diameter tubing to improve flow and performance.
  • If you prefer easy installation while retaining a moderate to aggressive exhaust note, choose a direct-fit muffler system designed to use factory hanger locations for a hassle-free swap.

Quick Best Exhaust For 6.4 Hemi Buying Checklist

  • Material Quality: Opt for high-grade stainless steel for durability and corrosion resistance.
  • Performance Boost: Look for systems designed to improve horsepower and torque effectively.
  • Proper Fitment: Confirm the exhaust matches the 6.4 Hemi engine specifications and installation needs.
  • Sound Profile: Choose an exhaust that delivers your desired noise level without violating local laws.
  • Warranty: Select products with solid warranty coverage for long-term peace of mind.
  • Brand Reliability: Prefer well-reviewed brands known for quality and customer support in HEMI exhaust systems.

Frequently Asked Questions

What Is The Best Material For A 6.4 Hemi Exhaust?

The best material for a 6.4 Hemi exhaust is typically high-grade stainless steel because it offers superior corrosion resistance and durability. This ensures the exhaust system withstands harsh conditions and extends its lifespan, maintaining performance over time.

Can Upgrading The Exhaust Improve My 6.4 Hemi’S Performance?

Yes, upgrading the exhaust can improve your 6.4 Hemi’s performance by increasing exhaust flow and reducing backpressure. Enhanced pipe diameter and efficient muffler design optimize horsepower and torque, delivering better engine responsiveness and power.

How Important Is Compatibility When Choosing A 6.4 Hemi Exhaust?

Compatibility is crucial when selecting a 6.4 Hemi exhaust because it ensures a proper fit and optimal performance. Exhausts designed specifically for the 6.4 Hemi engine simplify installation and maintain factory alignment, preventing leaks or performance loss.

Will A New Exhaust System Change The Sound Of My 6.4 Hemi?

Yes, a new exhaust system will change the sound of your 6.4 Hemi by altering the exhaust note and volume. Different mufflers and pipe layouts create distinct acoustic signatures, from deep throaty growls to aggressive roars, allowing customization to personal preference.

Why Is Warranty Important When Buying A 6.4 Hemi Exhaust?

Warranty is important because it protects your investment in a 6.4 Hemi exhaust against defects or premature failure. A good warranty reflects manufacturer confidence, providing assurance for reliable performance and access to customer support if issues arise.

Final Suggestions

Choosing the best exhaust for your 6.4 Hemi delivers improved performance, sound, and durability tailored specifically to this powerful engine. These systems offer significant enhancements in power and engine efficiency while providing customization options to fit your preferences. Investing in a quality exhaust ensures lasting value and an exhilarating driving experience.

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