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

Cobra 3" RPT Chrome Slip-On Mufflers


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J&P Part #:  178-326
Mfr Part #:  6053

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Cobra 3
Cobra 3" RPT Chrome Slip-On Mufflers

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Cobra 3

Cobra 3" RPT Chrome Slip-On Mufflers

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Product Details


Description for Cobra 3" RPT Chrome Slip-On Mufflers

Cobra consistently offers the market some of the top performing products at an extremely affordable price. Take these 3" RPT Slip-On Mufflers for example, as it uses constant velocity cores and bonded e-glass and stainless steel mesh to unbeatable performance as well as sound.

• The RPT designation comes from adapting the design from out Race-Pro 4" muffler into this 3" size

• The bodies begin as 3" at the front until they expand to 3-1/2" at the rear

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

• Billet RPT tip finishes off the rear

• 2" spun-louvered baffle creates back pressure and accelerates exhaust gases

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Cobra 3

Product Specs for Cobra 3" RPT Chrome Slip-On Mufflers

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®

    • Softail Breakout CVO FXSBSE : 2013–2014
    • Softail Breakout FXSB : 2013–2017
    • Softail Convertible CVO FLSTSE : 2010
    • Softail Convertible CVO FLSTSE2 : 2011
    • Softail Convertible CVO FLSTSE3 : 2012
    • Softail Custom FXSTC : 2007–2010
    • Softail Deluxe CVO FLSTNSE : 2014–2015
    • Softail Heritage Classic Anniversary FLSTC : 2013
    • Softail Heritage Classic FLSTC : 2007–2017
    • Softail Night Train FXSTB : 2007–2009
    • Softail Rocker C FXCWC : 2008–2011
    • Softail Rocker FXCW : 2008–2009
    • Softail Springer Classic FLSTSC : 2007
    • Softail Springer CVO FXSTSSE3 : 2009
    • Softail Standard FXST : 2007–2015
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.

Shipping Note

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

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Ratings & Reviews

Help Customers Understand This Product

45 Reviews
Rating Breakdown
5 stars
4 stars
3 stars
2 stars
1 star
July 8, 2021
I was pleasantly surprised after installing the Cobra mufflers how well they sound. Easy install. Although removing my old mufflers was a pain. Overall I’m very happy with them. I’d give them five stars.
June 18, 2021
Nice gives motorcycle that classic Harley grumble with out that supper loud anoying tin sound . Look awesome.
April 29, 2021
Just finished the first ride after installation and was very pleased. Not obnoxiously loud but enough to be heard. Sound is pleasant to me. Very easy to install too.
April 12, 2021
I ordered these not knowing the true sound.Installation was easy.after install fired up big difference. Love the sound well worth the price.And looks great.
March 29, 2021
they look and sound good have already got an outstanding from other motorcycle friends
February 1, 2021
Great pipes
January 18, 2021
I ordered this set of mufflers for my Tri-Glide. To be honest i haven't installed them yet ( Thanks Ohio for the snow and cold ) but they are beautiful and exactly as described. I have purchased Cobra pipes before and know they will sound as great as they look.
November 9, 2020
great part went on easy and sounds great, think you
October 27, 2020
The order was easily placed with a knowledgeable representative and arrived on my doorstep in only 2 days! I listened to the Cobra Neighbor Haters on line and was still a bit concerned that they would be too subdued. After an easy install, I found them to be exactly what I hoped. A deep rumble at idle and a harsh roar during acceleration. My Heritage now sounds like It should...a 103 CI of American Motorcycle.
October 16, 2020
Great price, ibnstall was what I expected, and the sound is nice and deep with a good crack when you twist hard. Nice n chromy, just like I like it. All smiles

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Cobra 3

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