Harley Mufflers
Harley Bike Mufflers at JJ Motorsports
Give your Harley the perfect sound and performance with premium 4" and 4.5" slip-on mufflers from JJ Motorsports, featuring deep tone, increased flow, and race-inspired styling for Touring, Softail, and bagger models. These high-quality mufflers deliver instant power gains and head-turning rumble without a full system.
Shop Vance & Hines and Drag Specialties mufflers for proven quality and easy bolt-on installation. Explore related categories such as Harley exhaust for headers and full systems, or Harley for air cleaners and tuning to complete your performance build.
Top Harley Mufflers
- Vance & Hines 4.5" Torquer Mufflers for FL Machine Cut 46676 – 4.5-inch Torquer slip-ons with machined end caps; deep aggressive tone for Touring models.
- Vance & Hines 4" Eliminator Mufflers Black 46714 – Black Eliminator 400 series slip-ons; sleek look with powerful sound for baggers.
- Drag Specialties 4" Mufflers for FL Black H00968 – Black 4-inch slip-on mufflers; budget-friendly deep tone for FL Touring models.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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On Sale
S&S CYCLE 4-1/2" Chrome MK45 Cutlass Performance Mufflers 550-1011
S&S CYCLE
MSRP: $819.95Now: $737.96Was: $819.95If you're running an exhaust system that sounds generic and performs like stock, you're leaving both horsepower and character on the table. The S&S Cycle MK45 Cutlass Performance Mufflers deliver a deep, aggressive exhaust note across your entire RPM...18011494- SKU:
- 18011494
- Availability:
- Ships Same Business Day
- Weight:
- 26.55 LBS
MSRP: $819.95Now: $737.96Was: $819.95 -
On Sale
S&S CYCLE 4-1/2" Black MK45 Cutlass Performance Mufflers 550-1016
S&S CYCLE
MSRP: $819.95Now: $737.96Was: $819.95If you're running a cruiser or touring bike and want serious presence without sacrificing street legality, the S&S Cycle MK45 Cutlass delivers a commanding exhaust note that turns heads while keeping you compliant across all 50 states. The stainless...18011495- SKU:
- 18011495
- Availability:
- Ships Same Business Day
- Weight:
- 26.85 LBS
MSRP: $819.95Now: $737.96Was: $819.95 -
On Sale
S&S CYCLE 4-1/2" Chrome MK45 Cutlass Performance Mufflers 550-1017
S&S CYCLE
MSRP: $819.95Now: $737.96Was: $819.95If you're running a cruiser or touring bike and want authentic engine character without sacrificing street legality, the S&S Cycle MK45 Cutlass delivers the deep, aggressive sound profile serious riders expect. These mufflers strike the rare balance...18011496- SKU:
- 18011496
- Availability:
- Ships Same Business Day
- Weight:
- 26.85 LBS
MSRP: $819.95Now: $737.96Was: $819.95 -
VANCE & HINES Blackslash 450 Slip-On Mufflers - Black 46764
VANCE & HINES
$499.95If you're riding a Milwaukee-Eight Touring and want genuine performance sound without sacrificing reliability, the Vance & Hines Blackslash 450 slip-on mufflers deliver an aggressive, commanding exhaust note engineered specifically for your bike. These...18011500- SKU:
- 18011500
- Availability:
- Ships Same Business Day
- Weight:
- 24.25 LBS
$499.95 -
Khrome Werks 4-1/2" HP-Plus Slip-On Mufflers for 2017-2022 Harley-Davidson Road Glide ST FLTRXST with Tracer Tip 201670
KHROME WERKS
$949.95The HP-Plus Slip-On Mufflers deliver measurable gains in torque and horsepower while giving your Road Glide ST a signature aggressive tone that cuts through without excessive drone. These bolt-on mufflers combine tuned acoustics with precision...18011498- SKU:
- 18011498
- Availability:
- Ships Same Business Day
- Weight:
- 23.30 LBS
$949.95 -
Khrome Werks 4-1/2" HP-Plus Eclipse Slip-On Mufflers for 2017-2025 Harley-Davidson Touring 201675
KHROME WERKS
$949.95Factory mufflers rob your Touring of both presence and performance. The Khrome Werks HP-Plus slip-ons unlock measurable gains in torque and horsepower while delivering the commanding exhaust note your bike deserves—without the high-pitched drone that...18011499- SKU:
- 18011499
- Availability:
- Ships Same Business Day
- Weight:
- 25.50 LBS
$949.95 -
AKRAPOVIC Slip-On Line Muffler - Titanium S-HD12SO1-HAFT
AKRAPOVIC
$1,417.95If you're riding a Pan America 1250, you're already thinking beyond the pavement—but your exhaust shouldn't hold you back. The Akrapovic Slip-On Line Muffler delivers measurable performance gains where it counts: 1.7 hp at mid-range RPMs and nearly 6 Nm...18011497- SKU:
- 18011497
- Availability:
- Ships Same Business Day
- Weight:
- 11.00 LBS
$1,417.95 -
COBRA 4" Neighbor Haters Series Mufflers - Chrome 6276
COBRA
$668.95The COBRA 4" Neighbor Haters Series Muffler delivers the aggressive sound and performance edge you're looking for without sacrificing street legality. This muffler is engineered to maximize power on stock exhaust systems while providing the headroom to...18011503- SKU:
- 18011503
- Availability:
- Ships Same Business Day
- Weight:
- 23.15 LBS
$668.95 -
COBRA 4" Neighbor Haters Series Mufflers - Black 6276RB
COBRA
$617.95If you're running a stock exhaust system, you're leaving both power and tone on the table. The COBRA 4" Neighbor Haters Series Mufflers deliver a purposeful, aggressive sound while maintaining 50-state legal compliance—giving you the performance...18011504- SKU:
- 18011504
- Availability:
- Ships Same Business Day
- Weight:
- 22.95 LBS
$617.95 -
COBRA 4-1/2" NH Series Mufflers - Black 6288RB
COBRA
$562.95The COBRA NH Series Mufflers deliver the visual impact and acoustic character your motorcycle deserves without sacrificing legal compliance. Engineered for extended stock bags, these mufflers install as a true bolt-on upgrade that maintains factory...18011505- SKU:
- 18011505
- Availability:
- Ships Same Business Day
- Weight:
- 10.99 LBS
$562.95Qty in Cart: 0Quantity:Price:$562.95Subtotal: -
COBRA 4-1/2" Neighbor Haters Series Mufflers - Chrome 6290
COBRA
$701.95The COBRA 4-1/2" Neighbor Haters Series Muffler delivers aggressive sound and measurable performance gains without sacrificing street legality. Whether you're running stock internals or planning future engine modifications, this muffler scales with your...18011506- SKU:
- 18011506
- Availability:
- Ships Same Business Day
- Weight:
- 24.50 LBS
$701.95 -
COBRA 4" Neighbor Haters Series Mufflers - Chrome 6277
COBRA
$668.95If you're running stock head pipes and want to unlock real power gains without compromise, the COBRA 4" Neighbor Haters Series Mufflers deliver the sound and performance tuning flexibility serious riders demand. This is a bolt-on solution that works with...18011508- SKU:
- 18011508
- Availability:
- Ships Same Business Day
- Weight:
- 22.90 LBS
$668.95 -
COBRA 4" Neighbor Haters Series Mufflers - Black 6277RB
COBRA
$617.95If you're running a stock exhaust system, you're leaving power on the table and annoying everyone within earshot. The COBRA 4" Neighbor Haters Series Muffler delivers the aggressive sound and performance gains serious riders demand, while staying...18011509- SKU:
- 18011509
- Availability:
- Ships Same Business Day
- Weight:
- 22.65 LBS
$617.95 -
COBRA 4-1/2" NH Series Mufflers - Black 6289RB
COBRA
$562.95Replace worn or damaged mufflers with a U.S.-made exhaust component that delivers both OEM-level reliability and aggressive styling. The COBRA NH Series provides a bolt-on upgrade path for riders running extended saddlebags, eliminating fitment guesswork...18011510- SKU:
- 18011510
- Availability:
- Ships Same Business Day
- Weight:
- 24.30 LBS
$562.95 -
COBRA 4-1/2" Neighbor Haters Series Mufflers - Chrome 6291
COBRA
$701.95If you're running stock head pipes and want noticeable power gains without sacrificing street legality, the COBRA Neighbor Haters Series muffler delivers enhanced exhaust scavenging and a commanding presence. This is a bolt-on solution that improves both...18011511- SKU:
- 18011511
- Availability:
- Ships Same Business Day
- Weight:
- 24.50 LBS
$701.95 -
COBRA 4-1/2" Neighbor Haters Series Mufflers - Black 6291RB
COBRA
$661.95The COBRA 4-1/2" Neighbor Haters Series Muffler delivers aggressive exhaust sound with genuine performance gains, whether you're running stock or modified power levels. This bolt-on design responds to your current setup while leaving room to unlock...18011512- SKU:
- 18011512
- Availability:
- Ships Same Business Day
- Weight:
- 24.35 LBS
$661.95 -
VANCE & HINES Eliminator 300 Slip-On Mufflers - Black 46312
VANCE & HINES
$699.95If you're running a cruiser or touring bike and want measurable gains in mid-range torque without sacrificing street legality, the Vance & Hines Eliminator 300 slip-ons deliver real results. The PCX chambering technology optimizes exhaust scavenging to...18011515- SKU:
- 18011515
- Availability:
- Ships Same Business Day
- Weight:
- 14.50 LBS
$699.95 -
VANCE & HINES 3" Twin Slash Slip-On Mufflers - Black 46376
VANCE & HINES
$699.95If you're running a cruiser or touring bike that deserves more presence on the road, these slip-ons deliver measurable torque gains without the complexity of a full exhaust system. The PCX chambered design works with your stock header to optimize exhaust...18011534- SKU:
- 18011534
- Availability:
- Ships Same Business Day
- Weight:
- 15.65 LBS
$699.95 -
VANCE & HINES Adventure Hi-Output 450 Slip-On Muffler - Black - Stainless Steel 46533
VANCE & HINES
$599.95If you're running a Revolution Max 1250, the factory exhaust is leaving performance on the table. The Vance & Hines Adventure Hi-Output 450 delivers measurable gains—over 5 hp and 5 lb-ft of torque—while trimming nearly 6 lbs from your bike's overall...18011535- SKU:
- 18011535
- Availability:
- Ships Same Business Day
- Weight:
- 15.00 LBS
$599.95 -
On Sale
S&S CYCLE 4" Broadhead Slip-On Mufflers - Slash Cut - Black 550-1075
S&S CYCLE
MSRP: $871.95Now: $784.76Was: $871.95A quality slip-on muffler transforms your cruiser's sound and appearance without requiring exhaust system modifications. The S&S Cycle Broadhead delivers classic Harley aesthetics with a deep, aggressive tone while maintaining street-legal compliance...18011764- SKU:
- 18011764
- Availability:
- Ships Same Business Day
- Weight:
- 28.05 LBS
MSRP: $871.95Now: $784.76Was: $871.95Qty in Cart: 0Quantity:Price:MSRP: $871.95Now: $784.76Was: $871.95Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Mufflers
- Compatibility: Ensure mufflers fit your Harley's model (e.g., Milwaukee Eight powered Freewheeler, M-Eight engines, Revolution Max 1250, FL models 1995-2016). Use the vehicle selector for year-specific matches, focusing on slip-on designs compatible with stock headers or Vance & Hines Power Duals to avoid fit issues.
- Type of Use: For touring or street cruising, choose mufflers with deep throaty rumbles like Twin Slash; high-horsepower or performance builds benefit from Hi-Output or Torquer series for torque/HP gains in demanding conditions.
- Components and Upgrades: Select slip-on mufflers with billet end caps (e.g., inverted or twin slash), louvered baffles, or rebuildable cores. Add features like ceramic coatings for heat reduction or CNC-machined caps for style and durability.
- Brand and Quality: Opt for Vance & Hines for race-inspired designs with bold roars or Supertrapp for rebuildable cores and performance gains. Prioritize U.S.A.-made mild steel or stainless steel with chrome/black finishes for corrosion resistance and longevity.
- Installation and Cost: Most are bolt-on slip-ons with included mounting hardware for easy DIY setup. Prices range from $659.95 for Twin Slash to $879.95 for Hi-Output—factor in weight (4-33 lbs) and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these mufflers support? Mufflers fit models like Milwaukee Eight Freewheeler, M8 engines (e.g., Fat Bob), Revolution Max 1250 (e.g., Pan America), and FL 1995-2016—use the year/make/model filter for compatibility with specific chassis.
- How do these mufflers improve performance? Designs like Hi-Output or Torquer provide 5 HP/5 ft-lbs torque, improved volumetric efficiency, and deep aggressive roars for tuned motors.
- Are these mufflers emissions compliant? Some meet J2825 decibel levels (e.g., Hi-Output HO-450), but check local regulations as they focus on performance and sound.
- What materials are used in mufflers? Primarily mild steel or 304 stainless steel with chrome/black/ceramic finishes and billet/CNC end caps for style, heat resistance, and durability.
- What if a muffler doesn't fit my Harley? Verify model, engine, and header compatibility before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related exhaust parts? Yes—explore headpipes, midpipes, tips, or full systems in the Harley exhaust category to complement your muffler upgrade for complete performance.
