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Cobra 3
Cobra 3
Cobra 3
Cobra 3
Made in U.S.A.
34 Reviews

Cobra 3" RPT Slip On Mufflers Chrome


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J&P Part #:  178-336
Mfr Part #:  6081

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Cobra 3
Cobra 3" RPT Slip On Mufflers Chrome

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Cobra 3

Cobra 3" RPT Slip On Mufflers Chrome

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Product Details


Description for Cobra 3" RPT Slip On Mufflers Chrome

• The RPT slip-ons make use of all of the high-tech features of Cobra's regular three-inch slip-on mufflers, including two-inch constant velocity cores for exceptional sound and performance, as well as the bonded e-glass and stainless steel mesh.

• The RPT designation comes from adapting the design from our Race-Pro four-inch muffler into this three-inch size.

• The bodies begin as three-inches at the front until they expand to three and a half inches at the rear.

• The tip is also the Race-Pro machined design that's held in place with 12-point bolts.

• Fits stock headpipes

• Easy install using stock mounting brackets

• Made in the USA

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Cobra 3

Product Specs for Cobra 3" RPT Slip On Mufflers Chrome

End Cap Color:
End Cap Or Tip Color:
End Cap Or Tip Material:
End Cap Or Tip Style:
Straight Cut
End Cap Or Tips Finish:
Head Pipe Diameter:
Heat Shield:
Not Included
Manufacturer Part Number:
Muffler Color:
Muffler Diameter:
Muffler Finish:
Muffler Material:
Stainless Steel
Muffler Style:
Sold in Units:
Warehouse Part Number:

Fitment Questions?

With over 750 years of experience combined, our tech staff has the answers!

  • Harley-Davidson®

    • Sportster 1200 Custom XL1200C : 2014–2020
    • Sportster 1200 Custom XL1200CA : 2014–2016
    • Sportster 1200 Custom XL1200CB : 2014–2017
    • Sportster 1200 Custom XL1200CP : 2014–2016
    • Sportster 1200 Forty Eight Anniversary XL1200X : 2018
    • Sportster 1200 Forty Eight Special XL1200XS : 2018–2020
    • Sportster 1200 Forty Eight XL1200X : 2014–2020
    • Sportster 1200 Iron XL1200NS : 2018–2020
    • Sportster 1200 Roadster XL1200CX : 2016–2020
    • Sportster 1200 Seventy Two XL1200V : 2014–2016
    • Sportster 1200 SuperLow XL1200T : 2014–2017, 2020
    • Sportster 883 Iron XL883N : 2014–2020
    • Sportster 883 Police Iron XL883P : 2020
    • Sportster 883 Roadster XL883R : 2014–2015
    • Sportster 883 SuperLow XL883L : 2014–2020
Product Notes

Important Product Notes

Note: Please see U.S. EPA and your respective state and local regulations to confirm noise and emission compliance.

Important Exhaust Notes:

• Note: With any new exhaust, we recommend changes to carburetor jetting or use of an aftermarket fuel injection control module.

• There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Blueing is caused by tuning characteristics, cam timing, carburetor jetting, overheating, etc. and is not caused by defective manufacturing. No refunds on exhaust pipes once motorcycle is started unless there’s a manufacturer’s defect.

• Flanges and retaining rings are not included with most aftermarket exhaust for 1984-2013 Evolution and Twin Cam models. Re-use your existing hardware, or purchase replacement hardware.

Shipping Note

Due to state regulations we cannot ship this item to the state of California.

Product Videos

Ratings & Reviews

Help Customers Undertand This Product

34 Reviews
Rating Breakdown
5 stars
4 stars
3 stars
2 stars
1 star
June 23, 2020
I got these for my 15 Street Glide Special. They are amazing. They give a nice rumble when idling, not obnoxious are great sound as you accelerate.
June 12, 2020
These slip ons fit perfect. The sound is awesome. I highly recommend them.
June 10, 2020
Great purchase, great price. Very easy to install and sounds good!
May 20, 2020
Just the right sound for my H-D. These rpt’s are about medium decibel level compared to stock and mufflers that give you hearing loss. Now I have all three kinds. Not too loud at idle, low or cruising rpm’s but have a nice deep loud tone when throttling up.
May 18, 2020
These mufflers are fantastic. They have a nice mellow sound to them. Just what I was looking for. I give them a 5-star rating.
May 6, 2020
Rumbles at its best
April 6, 2020
Very straight forward fixing. Pipes outlook damn slick and awesome! Perfect roar, loud and crunchy when rev. Not those close-ear kinda loud but definitely satisfying! Medium-loud bass when idle. Definitely way better, hands down, than stick pipes! And thats what we aim for!
March 3, 2020
Great sound and simple to install.
November 4, 2019
October 31, 2019
The pipes were easy to install, and, I really like how they made my bike look. The sound of the pipes did not disappoint me in the least. The sounded sweet when I went for a ride the very next day.

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