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10 Best Flowing Muffler of December 2025
List of Top Rated Flowing Muffler from thousands of customer reviews & feedback.
Updated On Dec 2025
2,347 Reviews Studied
1
SHARKROAD Black 3" Slip on Mufflers Exhaust for Harley 2014-2020 Sportster XL 883/1200, Increased Sound and Performance... Read Review
- ✅ Fits 2014-2020 Harley-Davidson Sportster Models with Stock Headers
- ✅ Increased Sound and Performance by Straight, Free-Flowing Mufflers
- ✅ Replace Your Stock Mufflers Simply, There are No Modifications Needed
- ✅ Removable Baffle for Louder Sound
- ✅ Sold in a Quantity of 2
2
2.5 Inch Single Chamber Muffler, AUTOSAVER88 2-1/2 Universal Race Muffler Single Inlet Single Outlet High Flow Muffler Read Review
- 2.5 inch inlet Single chamber universal muffler for power and torque increase.
- Durable fully MIG-welded construction for corrosion resistance and high temperature resistant.
- Enables the high temperature gas to be discharged safely and effectively.
- Super aggressive deep sound level, intended for off-road or race applications.
- Installation of the muffler may require welding and modification, professional installation is highly recommended.
3
Dynomax 17733 Super Turbo Muffler Read Review
- Large internal flow tubes improve exhaust flow and reduce backpressure
- Exclusive patented flow director design channels exhaust flow and eliminates turbulence
- Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
- Dyno proven to flow up to 700 SCFM
- The "Pure Unadulterated POWER" of DynoMax Super Turbo mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee.
4
Clamp-on Muffler for Gravely Replaces Gravely 18543 Read Review
- · Fits Gravely 011203, 018543, 18543, 20259700
- · Inlet Inside Diameter: 1-5/16”
- · Outlet Inside Diameter: 1-1/4”
- · Rotary Part Number: 2286
5
Dynomax 17223 Ultra-Flo Welded Muffler Read Review
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
6
TOTALFLOW 414633 18 Inch Muffler 09-18 1500 Direct Fit Exhaust 2009-2018 Dodge Ram 1500-409 Stainless Steel Read Review
- CHECK PRODUCT DETAILS CHART BELOW FOR OTHER SIZES.
- Fits 09-18 Dodge/Ram 1500 Direct Fit Exhaust Muffler for 2009-2018 Dodge Ram 1500 Trucks with 5. 7L Engine and Factory Dual Tailpipe Option (18 Inch Muffler )
- Constructed with durable 409 Stainless Steel, fully MIG welded for long life
- Delivers a smooth, deep tone sound.
- 2009-2010 Dodge Ram 1500
- 2011-2012 Dodge Ram 1500
- 2013-2014 Dodge Ram 1500
- 2015-2016 Dodge Ram 1500
- 2017-2018 Dodge Ram 1500
- Made from heavy gauge material. TOTALFLOW is a USA - California based company
7
Walker Exhaust Quiet-Flow 22726 Exhaust Muffler Read Review
- CORROSION RESISTANT STAINLESS STEEL -- The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
- EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
- BUILT TO LAST -- Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide structural stability and longer service life
- PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
8
SHARKROAD Chrome 3" Slip on Mufflers Exhaust for Harley 2014-2020 Sportster XL 883/1200, Increased Sound and Performance... Read Review
- ✅ Fits 2014-2020 Harley-Davidson Sportster Models with Stock Headers
- ✅ Increased Sound and Performance by Straight, Free-Flowing Mufflers
- ✅ Replace Your Stock Mufflers Simply, There are No Modifications Needed
- ✅ Removable Baffle for Louder Sound
- ✅ Sold in a Quantity of 2
9
SHARKROAD Chrome 3" Slip on Mufflers Exhaust for Harley 2014-2020 Sportster XL 883/1200, Increased Sound and Performance... Read Review
- ✅ Fits 2014-2020 Harley-Davidson Sportster Models with Stock Headers
- ✅ Increased Sound and Performance by Straight, Free-Flowing Mufflers
- ✅ Replace Your Stock Mufflers Simply, There are No Modifications Needed
- ✅ Removable Baffle for Louder Sound
- ✅ Sold in a Quantity of 2
10
TOTALFLOW 415541 Two-Chamber Universal Muffler - 2.5" Offset In / 2.5" Center Out Read Review
- Universal 2-chamber Muffler 2. 50" offset in/ 2. 50" center out. Check product details below for other sizes.
- Constructed with durable 409 Stainless Steel, fully MIG welded for long life
- Delivers a smooth, deep tone sound.
- Universal Muffler -not a direct fit. Some adaptation required.
- 2. 5 inch offset muffler
- 2. 5 inch center muffler
- Made from heavy gauge material. TOTALFLOW is a USA - California based company
