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Harley Mufflers

Harley Mufflers

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

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!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • COBRA Neighbor Hater Mufflers for FL - Black 6109RB

    COBRA Neighbor Hater Mufflers for FL - Black 6109RB

    COBRA

    $518.95
    If aggressive exhaust tone is your priority, the COBRA Neighbor Hater Mufflers deliver uncompromising sound without sacrificing build quality. These slip-on units are engineered with a perforated core and strategically spaced internal baffling to produce...
    18011050
    SKU:
    18011050
    Availability:
    Ships Same Business Day
    Weight:
    21.20 LBS
    $518.95
    Qty in Cart: 0
    Quantity:
    Price:
    $518.95
    Subtotal:
  • COBRA Neighbor Hater Mufflers for FL - Chrome 6109

    COBRA Neighbor Hater Mufflers for FL - Chrome 6109

    COBRA

    $547.95
    If your Harley's stock exhaust is too quiet for your riding style, the COBRA Neighbor Hater Mufflers deliver the aggressive bark and commanding presence you're after. These slip-on mufflers produce a distinctly aggressive tone through...
    18011049
    SKU:
    18011049
    Availability:
    Ships Same Business Day
    Weight:
    21.00 LBS
    $547.95
    Qty in Cart: 0
    Quantity:
    Price:
    $547.95
    Subtotal:
  • COBRA 909 Slip-On Mufflers for FL - Black 6108RB

    COBRA 909 Slip-On Mufflers for FL - Black 6108RB

    COBRA

    $518.95
    If you're running FL models, the COBRA 909 Slip-On delivers the classic Harley tone riders expect without sacrificing modern performance. The tuned constant velocity core optimizes exhaust scavenging for better mid-range response, while the rolled...
    18011048
    SKU:
    18011048
    Availability:
    Ships Same Business Day
    Weight:
    20.00 LBS
    $518.95
    Qty in Cart: 0
    Quantity:
    Price:
    $518.95
    Subtotal:
  • COBRA 909 Slip-On Mufflers for FL - Chrome 6108

    COBRA 909 Slip-On Mufflers for FL - Chrome 6108

    COBRA

    $547.95
    The COBRA 909 Slip-On delivers the authentic Harley-Davidson exhaust note that separates a truly dialed-in machine from the rest. The tuned constant-velocity core produces measurable performance gains while maintaining that classic deep rumble riders...
    18011047
    SKU:
    18011047
    Availability:
    Ships Same Business Day
    Weight:
    20.50 LBS
    $547.95
    Qty in Cart: 0
    Quantity:
    Price:
    $547.95
    Subtotal:
  • COBRA Neighbor Hater Mufflers for '95-'16 Bagger - Black 6107RB

    COBRA Neighbor Hater Mufflers for '95-'16 Bagger - Black 6107RB

    COBRA

    $518.95
    If you're running a bagger and want your presence announced before you even roll into view, the COBRA Neighbor Hater Mufflers deliver the aggressive sound and stance that separates serious riders from the crowd. These slip-on mufflers are engineered to...
    18011026
    SKU:
    18011026
    Availability:
    Ships Same Business Day
    Weight:
    22.00 LBS
    $518.95
    Qty in Cart: 0
    Quantity:
    Price:
    $518.95
    Subtotal:
  • COBRA 909 4" Mufflers - Black - '95-'16 Bagger 6106RB

    COBRA 909 4" Mufflers - Black - '95-'16 Bagger 6106RB

    COBRA

    $518.95
    If you're running a bagger, exhaust note matters as much as performance. The COBRA 909 delivers that signature Harley rumble while the tuned constant-velocity core optimizes scavenging for measurable power gains. You get a clean, finished aesthetic with...
    18011025
    SKU:
    18011025
    Availability:
    Ships Same Business Day
    Weight:
    21.70 LBS
    $518.95
    Qty in Cart: 0
    Quantity:
    Price:
    $518.95
    Subtotal:
  • COBRA 3" RPT Mufflers for XL - Black 6081RB COBRA 3" RPT Mufflers for XL - Black 6081RB

    COBRA 3" RPT Mufflers for XL - Black 6081RB

    COBRA

    $529.95
    If you're running an XL and want to unlock deeper, more aggressive exhaust tone without sacrificing performance, the COBRA 3" RPT Mufflers deliver exactly that. These slip-ons are engineered to reduce backpressure while producing a rich, muscular sound...
    18011024
    SKU:
    18011024
    Availability:
    Ships Same Business Day
    Weight:
    12.30 LBS
    $529.95
    Qty in Cart: 0
    Quantity:
    Price:
    $529.95
    Subtotal:
  • COBRA 3" RPT Mufflers - Black - '04-'13 XL 6080RB

    COBRA 3" RPT Mufflers - Black - '04-'13 XL 6080RB

    COBRA

    $529.95
    If you're running an '04-'13 XL and want to unlock genuine performance gains without sacrificing rideability, COBRA's 3" RPT slip-ons deliver the right balance of flow and sound. The billet RPT tip and optimized core design reduce backpressure while...
    18011023
    SKU:
    18011023
    Availability:
    Ships Same Business Day
    Weight:
    13.20 LBS
    $529.95
    Qty in Cart: 0
    Quantity:
    Price:
    $529.95
    Subtotal:
  • COBRA Slashcut Mufflers - Black - '04-'13 XL 6030RB

    COBRA Slashcut Mufflers - Black - '04-'13 XL 6030RB

    COBRA

    $496.95
    These COBRA Slashcut Mufflers deliver measurable performance gains while giving your Harley a commanding presence without the premium price tag. The three-position chromed billet tips let you dial in your aesthetic—slash cut, slash down, or split the...
    18011020
    SKU:
    18011020
    Availability:
    Ships Same Business Day
    Weight:
    12.30 LBS
    $496.95
    Qty in Cart: 0
    Quantity:
    Price:
    $496.95
    Subtotal:
  • COBRA Neighbor Hater Mufflers for '95-'16 Bagger - Chrome 6107

    COBRA Neighbor Hater Mufflers for '95-'16 Bagger - Chrome 6107

    COBRA

    $547.95
    If stock exhaust notes feel like a whisper when you want a roar, the COBRA Neighbor Hater Mufflers deliver the aggressive bark and commanding presence your bagger demands. These slip-on units combine a purposeful design with internal baffle engineering...
    18010914
    SKU:
    18010914
    Availability:
    Ships Same Business Day
    Weight:
    22.00 LBS
    $547.95
    Qty in Cart: 0
    Quantity:
    Price:
    $547.95
    Subtotal:
  • COBRA 909 Mufflers - '15-'20 Freewheeler 6302

    COBRA 909 Mufflers - '15-'20 Freewheeler 6302

    COBRA

    $496.95
    The COBRA 909 Mufflers deliver the authentic Harley-Davidson sound that riders expect—deep, throaty, and unmistakably classic—without sacrificing performance or aesthetics. The tuned constant velocity core doesn't just look cleaner with its scalloped...
    18010868
    SKU:
    18010868
    Availability:
    Ships Same Business Day
    Weight:
    20.40 LBS
    BASE FINISH:
    CHROME
    MODEL:
    909
    OUTER DIAMETER IMPERIAL:
    4'
    STYLE:
    ROUND
    UNITS:
    PAIR
    END CAP STYLE:
    SCALLOPED
    TYPE:
    SLIP-ON
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    STREET
    $496.95
    Qty in Cart: 0
    Quantity:
    Price:
    $496.95
    Subtotal:
  • COBRA RPT 3" Mufflers - Chrome - '95-'16 Bagger 6070

    COBRA RPT 3" Mufflers - Chrome - '95-'16 Bagger 6070

    COBRA

    $518.95
    If you're running a bagger that demands both aggressive sound and genuine performance gains, the COBRA RPT 3" Mufflers deliver on both fronts. These slip-ons combine a purposeful acoustic signature with efficient exhaust scavenging, thanks to their...
    18010723
    SKU:
    18010723
    Availability:
    Ships Same Business Day
    Weight:
    18.50 LBS
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    RIDING STYLE:
    STREET
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    END CAP STYLE:
    STRAIGHT-CUT
    MODEL:
    RPT
    UNITS:
    PAIR
    $518.95
    Qty in Cart: 0
    Quantity:
    Price:
    $518.95
    Subtotal:
  • COBRA 3" RPT Mufflers - Chrome 6056

    COBRA 3" RPT Mufflers - Chrome 6056

    COBRA

    $507.95
    If you're running a 3" exhaust system and want measurable gains in flow efficiency without compromising sound quality, the COBRA RPT slip-ons deliver the performance engineering of a race-derived muffler in a bolt-on package. The constant velocity core...
    18010721
    SKU:
    18010721
    Availability:
    Ships Same Business Day
    Weight:
    14.00 LBS
    END CAP STYLE:
    STRAIGHT-CUT
    RIDING STYLE:
    STREET
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    UNITS:
    PAIR
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    TYPE:
    SLIP-ON
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • COBRA 3" RPT Mufflers for '95-'17 FXD - Chrome 6055

    COBRA 3" RPT Mufflers for '95-'17 FXD - Chrome 6055

    COBRA

    $507.95
    If you're running a '95-'17 Dyna and want genuine performance gains without sacrificing sound quality, these Cobra RPT slip-ons deliver. The constant velocity cores reduce back-pressure while the expanded chamber design maximizes flow—you'll feel the...
    18010719
    SKU:
    18010719
    Availability:
    Ships Same Business Day
    Weight:
    14.00 LBS
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    UNITS:
    PAIR
    END CAP STYLE:
    STRAIGHT-CUT
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    STREET
    TYPE:
    SLIP-ON
    $507.95
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • COBRA 3" RPT Mufflers for '00-'06 Softail - Chrome 6054

    COBRA 3" RPT Mufflers for '00-'06 Softail - Chrome 6054

    COBRA

    $507.95
    If you're running a '00-'06 Softail and want aggressive sound without sacrificing flow, these Cobra RPT slip-ons deliver the performance backbone your bike deserves. The Race-Pro-derived design combines acoustic precision with measurable back-pressure...
    18010717
    SKU:
    18010717
    Availability:
    Ships Same Business Day
    Weight:
    14.20 LBS
    BASE FINISH:
    CHROME
    COLOR/FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    UNITS:
    PAIR
    END CAP STYLE:
    STRAIGHT-CUT
    RIDING STYLE:
    STREET
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    $507.95
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • COBRA 3" RPT Mufflers for '07-'17 Softail - Black 6053B COBRA 3" RPT Mufflers for '07-'17 Softail - Black 6053B

    COBRA 3" RPT Mufflers for '07-'17 Softail - Black 6053B

    COBRA

    $529.95
    If you're running a '07-'17 Softail and want to maximize flow while maintaining aggressive sound, the Cobra RPT slip-ons deliver the performance backbone your bike needs. These aren't cosmetic upgrades—the 2" constant velocity cores are engineered to...
    18010716
    SKU:
    18010716
    Availability:
    Ships Same Business Day
    Weight:
    13.60 LBS
    $529.95
    Qty in Cart: 0
    Quantity:
    Price:
    $529.95
    Subtotal:
  • COBRA 3" RPT Mufflers for '07-'17 Softail - Chrome 6053

    COBRA 3" RPT Mufflers for '07-'17 Softail - Chrome 6053

    COBRA

    $507.95
    If you're running a '07-'17 Softail and want slip-on performance that delivers real gains in both sound and airflow, the Cobra RPT mufflers are engineered to bridge the gap between bolt-on convenience and race-proven design. By adapting Cobra's Race-Pro...
    18010715
    SKU:
    18010715
    Availability:
    Ships Same Business Day
    Weight:
    1.82 LBS
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    UNITS:
    PAIR
    RIDING STYLE:
    STREET
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    END CAP STYLE:
    STRAIGHT-CUT
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    $507.95
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • COBRA 3" RPT Mufflers - Black 6052B COBRA 3" RPT Mufflers - Black 6052B

    COBRA 3" RPT Mufflers - Black 6052B

    COBRA

    $529.95
    If you're running a 3" exhaust system and want measurable gains in both sound quality and scavenging efficiency, the COBRA RPT slip-ons deliver the engineering that separates race-proven hardware from bolt-on mediocrity. The constant velocity core design...
    18010714
    SKU:
    18010714
    Availability:
    Ships Same Business Day
    Weight:
    13.60 LBS
    $529.95
    Qty in Cart: 0
    Quantity:
    Price:
    $529.95
    Subtotal:
  • COBRA 3" RPT Mufflers - Chrome 6052

    COBRA 3" RPT Mufflers - Chrome 6052

    COBRA

    $507.95
    If you're running a 3" slip-on system and want the aggressive sound and flow characteristics of Cobra's Race-Pro platform without stepping up to the full 4" muffler, the RPT delivers exactly that. These mufflers combine proven race-derived engineering...
    18010713
    SKU:
    18010713
    Availability:
    Ships Same Business Day
    Weight:
    13.70 LBS
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    TYPE:
    SLIP-ON
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    END CAP STYLE:
    STRAIGHT-CUT
    UNITS:
    PAIR
    RIDING STYLE:
    STREET
    $507.95
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • COBRA 3" RPT Mufflers - Chrome 6051

    COBRA 3" RPT Mufflers - Chrome 6051

    COBRA

    $507.95
    If you're running a 3" slip-on exhaust system, you need mufflers that deliver both aggressive sound and measurable performance gains without compromise. The COBRA 3" RPT mufflers combine race-proven engineering with street-friendly fitment, giving you...
    18010711
    SKU:
    18010711
    Availability:
    Ships Same Business Day
    Weight:
    13.80 LBS
    END CAP STYLE:
    STRAIGHT-CUT
    BASE FINISH:
    CHROME
    END CAP COLOR/FINISH:
    BLACK
    OUTER DIAMETER IMPERIAL:
    3'
    STYLE:
    ROUND
    TYPE:
    SLIP-ON
    UNITS:
    PAIR
    COLOR/FINISH:
    CHROME
    PRODUCT NAME:
    MUFFLER
    RIDING STYLE:
    STREET
    $507.95
    Qty in Cart: 0
    Quantity:
    Price:
    $507.95
    Subtotal:
  • Total: items /

Adding your products to cart

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)

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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