Free Shipping.

Expert Service.

Call 888-575-6570

Cobra 3" Slip-On RPT Exhaust

(31 reviews)

Item: 341996

$376.34 – $684.05

Select Your Vehicle - Fitment Guaranteed

Cobra 3" Slip-On RPT Exhaust


RPT slip-ons make use of all of the high-tech features of Cobra's regular 3" slip-on mufflers, including 2" 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 their Race-Pro 4" muffler into this 3" size. The bodies begin as 3" at the front until they expand to 3.5" at the rear. The billet aluminum tip is also the Race-Pro machined design that's held in place with 12-point bolts.

  • Fits stock head pipes
  • Easy installation using stock mounting brackets
  • Easy to understand instructions and all required mounting hardware included with each kit
  • Made in the USA
Specification Details
Baffles Included Varies (make selection above)
CARB Approved Varies (make selection above)
Configuration Varies (make selection above)
Country of Origin USA
Engine Type Varies (make selection above)
Exhaust Diameter 3 in.
Finish Varies (make selection above)
Material Varies (make selection above)
Muffler End Cap Varies (make selection above)
Muffler Sleeve Varies (make selection above)
Quantity Varies (make selection above)
Warranty Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLDE Softail Deluxe 2018-2020
  • FLFB Softail Fat Boy 2018-2019
  • FLFBS Softail Fat Boy 114 2018-2024
  • FLHC Softail Heritage Classic 2018-2021
  • FLHCS Softail Heritage Classic 114 2018-2024
  • FLHR Road King 1995-2022
  • FLHRC Road King Classic 2007-2013
  • FLHRCI Road King Classic 1998-2006
  • FLHRI Road King 1996-2006
  • FLHRS Road King Custom 2004-2007
  • FLHRSI Road King Custom 2004-2006
  • FLHRXS Road King Special 2017-2023
  • FLHT Electra Glide Standard 1995-2009
  • FLHTC Electra Glide Classic 1995-2005, 2007-2013
  • FLHTCI Electra Glide Classic 1996-2006
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCU TC Ultra Classic Electra Glide Twin-Cooled 2015-2016
  • FLHTCU Ultra Classic Electra Glide 1995-2016
  • FLHTCUI Ultra Classic Electra Glide 1995-2006
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2017
  • FLHTCUL TC Electra Glide Ultra Classic Low Twin-Cooled 2015-2016
  • FLHTCUTG Tri Glide Ultra Classic 2009-2016
  • FLHTI Electra Glide Standard 2003-2006
  • FLHTK Electra Glide Ultra Limited 2010-2023
  • FLHTKL Electra Glide Ultra Limited Low 2015-2019
  • FLHX Street Glide 2006-2023
  • FLHXI Street Glide 2006
  • FLHXS Street Glide Special 2014-2023
  • FLHXXX Street Glide Trike 2010-2011
  • FLRT Freewheeler 2015-2022
  • FLS Softail Slim 2012-2017
  • FLSB Softail Sport Glide 2018-2021
  • FLSL Softail Slim 2018-2021
  • FLSS Softail Slim S 2016-2017
  • FLST Heritage Softail 2006
  • FLSTC Heritage Softail Classic 2000-2006, 2008-2017
  • FLSTCI Heritage Softail Classic 2001-2006
  • FLSTF Softail Fat Boy 2000-2017
  • FLSTFB Softail Fat Boy Lo 2010-2016
  • FLSTFBS Softail Fat Boy S 2016-2017
  • FLSTFI Softail Fat Boy 2001-2006
  • FLSTI Heritage Softail 2006
  • FLSTN Softail Deluxe 2005-2006, 2008-2017
  • FLSTNI Softail Deluxe 2005-2006
  • FLSTSB Softail Cross Bones 2008-2011
  • FLTCU Ultra Classic Tour Glide 1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTR Road Glide 1998-2004, 2007-2009
  • FLTRI Road Glide 1998-2006
  • FLTRU Road Glide Ultra 2011-2013, 2016-2019
  • FLTRX Road Glide 2015-2023
  • FLTRX Road Glide Custom 2010-2013
  • FLTRXS Road Glide Special 2015-2023
  • FXBB Softail Street Bob 2018-2020
  • FXBBS Softail Street Bob 114 2021-2024
  • FXBR Softail Breakout 2018-2019
  • FXBRS Softail Breakout 114 2018-2020
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Street Bob 2007-2017
  • FXDBI Dyna Street Bob 2006
  • FXDC Dyna Super Glide Custom 2005, 2007-2014
  • FXDCI Dyna Super Glide Custom 2005-2006
  • FXDF Dyna Fat Bob 2008-2017
  • FXDI Dyna Super Glide 2004-2006
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDL Dyna Low Rider 2005, 2007-2009
  • FXDLI Dyna Low Rider 2005-2006
  • FXDS-CONV Dyna Convertible 1995-1997, 2000
  • FXDWG Dyna Wide Glide 1995-2005, 2010-2017
  • FXDWGI Dyna Wide Glide 2004-2006
  • FXDX Dyna Super Glide Sport 2000-2005
  • FXDXI Dyna Super Glide Sport 2004-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXLR Softail Low Rider 2018-2020
  • FXLRS Softail Low Rider S 2020-2024
  • FXS Softail Blackline 2011-2013
  • FXSB Softail Breakout 2013-2017
  • FXST Softail Standard 2000-2007
  • FXSTB Softail Night Train 2000-2009
  • FXSTBI Softail Night Train 2001-2006
  • FXSTC Softail Custom 2007-2010
  • FXSTD Softail Deuce 2000-2007
  • FXSTDI Softail Deuce 2001-2006
  • FXSTI Softail Standard 2001-2006
  • FXSTS Springer Softail 2000-2006
  • FXSTSI Springer Softail 2001-2006
  • XL1200C Sportster 1200 Custom 2004-2019
  • XL1200CX Sportster Roadster 2016-2020
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200NS Sportster 1200 Iron 2018-2021
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200T Sportster SuperLow 2014-2018
  • XL1200V Sportster Seventy-Two 2012-2016
  • XL1200X Sportster Forty-Eight 2010-2022
  • XL1200XS Sportster Forty-Eight Special 2018-2019
  • XL50 50th Anniversary Sportster 2007
  • XL883 Sportster 883 2004-2009
  • XL883C Sportster 883 Custom 2004-2010
  • XL883L Sportster 883 Low 2005-2010
  • XL883L Sportster SuperLow 2011-2019
  • XL883N Sportster Iron 883 2009-2022
  • XL883R Sportster 883R 2004-2010
  • XL883R Sportster Roadster 2011-2015

Customer Reviews

Write Review

Sounds awesome

By   on  Verified Purchaser

Sounds awesome on bike, just what we were looking for.


Thumbs up

By   on  Verified Purchaser

Very happy with the Cobra RPT slipons. Bike sounds like a Harley and not a sewing machine now!


Not ear splitting loud just right!

By   on 

Made my 2007 FXSTC sound like a different bike, had screaming eagle slip on's they weren't much louder than a stock exhaust. I got the black put a couple hundred miles on them so far and I really like them, not ear splitting loud just right!


Makes a Harley sound like a Harley...

By   on  Verified Purchaser

Extremely happy with my purchase. Very easy to install and looks `factory` when done. Be sure to order the bushings with the pipes as they are made of graphite and the originals will probably crumble before they come out.. Love the sound!..(note: Cobra supplies 4-3/8' bolts to replace the factory 4-hex bolts that are a PIA to deal with..nice touch.)


Definitely recommend.

By   on  Verified Purchaser

I really like the look and sound of these slipons. Service was fast and easy.


Street bob 114. 2021

By   on  Verified Purchaser

It was pretty easy to put on, I only wish I had known I really needed the gaskets, I had to run to the Harley store to get them. Once I got that it took me less than 15 minutes to finish putting them on. Took me longer to clean up :) But they are nice.


New Cobra RPT 3" slip-ons

By   on  Verified Purchaser

I was highly impressed with my Cobra RPT 3" slip-ons. The package came quickly and was as advertised. I love the appearance as well as the quality. I didn't have any real difficulty with the installation. The sound of them is a nice tone that definitely says Harley-Davidson, and my wife can now hear me coming in the neighborhood. At highway speeds, they are not too loud as to overpower my sound system, but really makes it more fun to ride hearing the rumble now.


Cobra RPT Slip on

By   on  Verified Purchaser

Cobra RPT Slip on for my new 2022 Heritage 114ci. Order arrived fast in perfect condition and went on like a dream. I had to have the ECM mapped because the stock intake is a heavy breather. But I am very happy with the uptake in throttle response and low end torque. The sound for me is perfect and balanced out the sewing machine sound that stock harley exhaust have. A good product at a good price.


Thanks

By   on  Verified Purchaser

Happy with the great exhaust. The sound alone is worth the money, and it still looks very good.


RPT

By   on 

I had the RPT's put on my bike. The look and sound was unbelievable. Now my bike sounds like a real Harley. I would recommend this pipes to anyone that wants a great look and a great sound.


xcellent fit and finish-sound isn't quite what I was looking for

By   on  Verified Purchaser

Excellent fit and finish-sound isn't quite what I was looking for, but that is subjective-well packaged.


Cobra RPT

By   on  Verified Purchaser

These are well made mufflers. The fit my 2019 883 iron like a glove. Took 10 minutes to remove the Pythons and 10 minutes to install the Cobras.


Cobra 3 rpt slip ons

By   on  Verified Purchaser

Love the sound and look. Easy to install, and nice quality! Nice deep rumble!


Cobra slip ons

By   on  Verified Purchaser

Cobra slip-ons sound great. Good mellow tone at idle and pretty beefy when the throttle is opened. I can’t wait to get it in the mountains where I can pull on it!


Fantastic!

By   on  Verified Purchaser

Absolutely love these exhaust tips! Easy install on my first bike. Sounds amazing. Thought about taking off the baffles but I don't even need to. They sounds fantastic.


Cobra RPT Chrome Mufflers

By   on  Verified Purchaser

I ordered the Cobra Chrome RPT slip on mufflers. Very happy with the sound of my new mufflers. They produce enough sound but not annoy like my last pipes.


The sound and performance I needed for my Bike!

By   on  Verified Purchaser

Cannot express how much I am impressed with these pipes. Replaced my stock 2016 Heritage softail exhaust. Immediately when I fired it up the deep rumble was there that is the classic sound of a true Harley! Even at cruising speeds the deep base is there. Future Harley bikes will have these pipes!


Satisfied Customer

By   on  Verified Purchaser

I am super excited and very pleased with my purchase. The product was shipped in perfect condition and arrived sooner than I expected it. The installation was an ease. Overall I am very satisfied and happy with my purchase.


Seemingly excellent quality

By   on  Verified Purchaser

I received these Cobra slip ons and installation was a breeze. These are quieter that I thought but still great sound. Get the muffler inlet gaskets, don't mess around.


Fits real good

By   on  Verified Purchaser

I finally put on these pipes! They sound amazing and look great. This was money well spent!


Cobra RPT Exhaust

By   on  Verified Purchaser

Not as loud as I thought they would be but still have a great sound. I would buy them again.


Worth it

By   on  Verified Purchaser

More than worth the $300 it cost to install these on my 2012 1200 Nightster. Sound is louder than stock but not too ridiculous (in my opinion) but what’s more important is the deeper/richer sound these produce. Much more satisfying to the ear. Installation was a challenge though. Not the fault of Cobra, it was very hard to get the stock exhaust off because it’s an older bike and the metal expanded through the years. Would definitely recommend having a mechanic install in case you run into this problem. It took me and a strong friend using all our might to get the stock mufflers off but once we did the new ones slipped right on easily. Props to Cobra, buy these slip-ons.


Cobra Slip-On RPT Exhaust

By   on  Verified Purchaser

Great pipes great company, thanks.


Best Purchase ever!

By   on  Verified Purchaser

I been researching some mufflers and came across these Cobras. I wanted something with a good growl but not something that was annoyingly loud. They fit great and installation was a breeze! The Iron sounds great!


Works as advertised.

By   on  Verified Purchaser

My order arrived quickly. Was undamaged. Very easily installed. Sound great and look great. Would buy these again. Highly recommend.


Feels great

By   on  Verified Purchaser

I have a 2019 softail and the grips fit great. Installed easy and looks good. Feels great!


RPT's

By   on  Verified Purchaser

Great looking mufflers and the sounds is pretty good. They are a good match for my Cobra Duals


Awesome Sound, Awesome Performance,... Can't Ask For More!

By   on 

These slip-on mufflers are just what my 2017 Softail Slim needed to wake up the sound and increase performance. Previously I had Screamin Eagle Street Canons along with Screamin Eagle Stage 1 air kit and FP3 tuner on my bike. I was not at all happy with the exhaust note or the low end performance. These new Cobras have a deep bass rumble at idle and when at cruising speed, but once I twist the throttle they begin to growl... I love it! I have also notice better throttle response in the lower gears than I had with the Street Canons. All in all I'm very happy with my purchase from PartsGiant.


Awesome sound

By   on  Verified Purchaser

If you want a really throaty sound when you snap the throttle this is the ticket. When you are at speed they sound mellow. But make no mistake you loose that stock sewing machine sound with that awful factory exhaust. Slip on is a great description for these mufflers. It's like wax on wax off (LOL).


Cobra slip ons.

By   on  Verified Purchaser

Better than expected. Sounds great. Mellow when cruising but throaty during acceleration. Got the chrome ones and was able to use the black heat shields that came with my stock 2015 breakout mufflers, liked the look of stock just not the sound.


Awesome sound and easy installation

By   on  Verified Purchaser

Once you put these on you are not riding your Grandmas FLSTC anymore. Easy installation. Got to say, start to finish and on the road, less then 20 minutes. A few suggestions: 1. Use some WD-40 too loosen up your stock muffler bolts. 2. Use the stock clamp rings to secure them. The ones that come with them are good but the stock ones are easier to use. 3. Loosen the heat shields to install. All in all a breeze to put on.


How many stars would you give this product? Write a review.

Write Review

Questions & Answers

Ask Question

Does this fit a 2022 fat boy?

Yes, these are offered for the 2022 FLFBS Fat Boy.

By Andy
Answer Question

Hello would these fit my 2013 883 iron? In the select year area it only go's down to 2014 thankyou

Yes, you should have no problem choosing 2013 then XL883N Sportster Iron.

By Andy
Answer Question

Loud mufflers for 2019 Freewheeler Trike ... I would like a set of mufflers that fit 2019 Harley Trike Freewheeler that are louder side

These mufflers will certainly be louder than the stock items fitted to the Freewheeler at the factory. Whether or not they're loud enough for your taste, of course, is difficult to say, but I can tell you that they do deliver a nice boost in sound output that'll get your trike more attention than stock.

By Staff
Answer Question

I have a 2019 harley freewheeler with a 114 motor. Will these work om that bike.

If you were to select the 2019 Harley Davidson FLRT Freewheeler, you'd receive the correct mufflers to fit your machine.

By Staff
Answer Question

Neighbor haters comparison

How do these compare with the neighbor hater design? Is the sound different ? Do the 4” ones sound different than the 3”?

The RPT mufflers are more of a performance-oriented design thanks to the internal design. Sound wise, yes - it's loud, but not as loud as the Neighbor Haters. Those mufflers are simply designed to be as loud as possible. The 3" 'Haters are going to have a raspier tone when compared to the 4" variant. But again, loud is the design goal with those - not so much outright performance like that of the RPTs.

By Staff
Answer Question

will these fit a 2016 heritage classic

Yes, if you were to choose the 2016 Harley Davidson FLSTC Heritage Softail Classic RPT exhaust from our fit guide, you'd receive the correct RPT exhaust to fit your machine.

By Staff
Answer Question

Quantity?

Are you paying for 2 or 1 at the listed price?

Cobra's RPT slip-on mufflers are sold in pairs. You only need to purchase a quantity of one to completely outfit your machine with a new set of Cobra mufflers.

By Staff
Answer Question

Will I have to add a fuel modification if I add the Cobra slip on to my 2002 FLSTCi, fuel injected.

In many cases, you may be able to install the 2002 Softail Custom exhaust without having to modify fuel delivery for your machine, though you may notice that throttle response isn't as good as it used to be. The bike might stumble at a constant throttle position or when make small changes with your right hand. The only way to be absolutely sure this doesn't become an issue, and so you get the biggest possible power gain out of the new FLSTCI exhaust, we (and Cobra) recommend a FLSTCI Cobra Fi2000R fuel controller. The unit is easy to adjust for your bike's particular configuration and the included instructions do an excellent job of explaining how to make those adjustments based upon how your bike responds to throttle inputs.

By Staff
Answer Question

Will these fit my 2013 superglide custom?

Yes, Cobra does indeed make a RPT Slip-on exhaust that'll fit the 2013 Superglide Custom. Just choose the 2013 Harley Davidson FXDC Dyna Super Glide Custom from our fit guide and we'll get the correct exhaust to fit your bike on its way to you, fast!

By Staff
Answer Question

Will these fit a 2016 Fatboy?

Yes, we do indeed have Cobra RPT slip-on mufflers available to fit the 2016 FLST Harley Fat Boy. Simply choose your machine from our fit guide and you'll be able to order those Fat Boy mufflers with either, chrome or black sleeves.

By Staff
Answer Question

Will these bolt on to the cobra true dual headers

Yes, Cobra RPT slip-on mufflers will bolt straight onto Cobra's True Dual Headers. In fact, those headers are specifically designed to work with any muffler that bolts up to the original Harley-Davidson headers. In this way, you can fit a tremendous variety of mufflers to those Cobra headers.

By Staff
Answer Question

Which slip ons have the deepest plop plop plop sound? I have a 2013 harley 48 sportstur. I want to put the deepest plop plop plop plop sound I can get. I was going to get the cobra 3". Is there a better sounding slip on for my bike thank you.

Sound is a rather subjective matter, so I can't say for sure if you'd like how this or any other exhaust we sell, rumbles. What I can say is that it'll certainly be louder than stock, and the RPT slip-on mufflers do have a relatively deep rumble to them. This is due specifically to the baffles' design which encourages a consistent exhaust gas velocity. In doing so, and especially at lower RPMs - the sound is rather distinct when compared to exhausts that use a conventional baffle design.

By Staff
Answer Question

I have a vance and hine fuel pak on an 08 flhx. Are these slip on compatible with the fuel pak?

Yes, the FLHX Vance & Hines Fuelpak can indeed be configured to work with a Street Glide Cobra RPT slip-on exhaust. In fact, the standard Fuelpak can be configured to work with just about any aftermarket Harley exhaust system and air cleaner combination with ease!

By Staff
Answer Question

Will these fit the 2003 HD Electra glide Police Edition ?

Yes, we do have these slip-ons available to fit that bike, even if we don't have the particular model listed in our fit guide. If you were to choose the 2003 FLHTC Electra Glide Classic from our fit menu, you'll get a set of slip-on mufflers that'll also fit the Electra Glide Police Edition as both of these machines share the same OEM exhaust system.

By Staff
Answer Question

On my 2000 FLSTC I upgraded to a Screaming Eagle ll exhaust and a larger carburetor jet. Would my performance be affected with the Cobra exhaust?

Actually, you'd probably find that the Cobra RPT exhaust for the FLSTC would be an excellent match for your current carburetor jetting. Yes, performance would be affected, but as you already have a larger jet installed in the carburetor, you might not have to do any modifications to fueling.

By Staff
Answer Question

What could you expect for performance/ hp increase if any?

I have a 2001 fatboy cardurated.

Without knowing the overall state of tune for your bike, it's difficult to say what kind of performance increase you could expect from this, or any other exhaust available. One thing is for certain though, unless you tune the carburetor to match, you won't see much of an improvement at all. This is due to the fact that, any time you change the way air gets out of (or into, for that matter) the engine, you'll want to adjust fueling to suit in order to get the best performance possible. Without tuning the bike to match this new exhaust, you end up with a lean-running bike at cruising speeds which translates into poor throttle response, higher engine temperatures and less-than-maximum engine performance where you spend most of your time, throttle-wise. The good news is that we have a Dynojet Carburetor Jet Kit that includes everything you need to get the most out of this exhaust in one box. Dynojet claims that, on Twin Cam 88 motors using a stock or high-flow intake and a good aftermarket exhaust system, you can expect to see gains of almost 20 hp.

By Staff
Answer Question

is the baffle removable

Yes, the Cobra RPT's baffle is indeed removable, but as it's an integral part of the end cap. If you were to pull them out, you'd have an interesting looking Cobra exhaust outlet. If you find that you like these mufflers, but they aren't loud enough, we recommend that you try adding a set of Cobra True Duals Header Pipes (for earlier Harley models) or Cobra Power Port True Dual Header Pipes to complete the set up. In this way, you'll get the maximum amount of power possible and even more sound.

By Staff
Answer Question

Does it comes with complete brackets?

Yes, all Cobra RPT slip-on exhausts come with all required mounting hardware and simple-to-understand installation instructions. Depending on the machine that you're installing it on to, you may have to re-use some of the OEM bolts and brackets - but there's no custom fabrication work involved. Simply remove the original muffler(s) and install the Cobra RPT exhaust in its place and you're ready to ride! Most installations can be handled in less than an hour if you're taking your time!

By Staff
Answer Question

Does it sound good?

In a word - yes, but really, it depends on what you definition of a good sound happens to be. The bonded e-glass cores in the mufflers do have a smoother sound to them than some other exhausts from Cobra that only use metal baffles. The cores take the hard edge off, so the sound isn't as harsh as older exhaust designs.

By Staff

Sounds great. Put them on my 2013 FLSTC as part of my Stage 1 upgrade

By DadTrap
Answer Question

will I need my bike retuned for best performance with these? I have fuel injection

While you can probably get away with installing this unit by itself, to get the best possible throttle response and engine performance, it's always best to get some sort of fueling modification device. Basically, any time you change the way air gets into or out of, the motor, you'll want to adjust fueling appropriately to maximize any performance gains available from the new setup. For Cobra exhausts, we recommend the Cobra Fi2000 PowrPro Tuner Fuel Controller. You can find that in our store to fit just about every bike for which Cobra makes an exhaust.

By Staff

The best way to get max performance is to use this exhaust with a stage 1 air cleaner and stage 1 download.

By Atrap
Answer Question

Have a question? Please ask our experts and customers who own this product.

Ask Question