Cobra 3" Slip-On RPT Exhaust

Item Number: 341996

5 stars 3 Reviews

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Product Description


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

Spec Details
Baffles Included Varies (make selection above)
CARB Approved Varies (make selection above)
Configuration Varies (make selection above)
Country of Origin USA
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)

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

  • FLHR Road King 1995-2016
  • 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
  • FLHT Electra Glide Standard 1995-2009
  • FLHTC Electra Glide Classic 1995-2005, 2007-2013
  • FLHTCI Electra Glide Classic 1996-2006
  • 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 2015-2016
  • 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 2010-2016
  • FLHTKL Electra Glide Ultra Limited Low 2015-2016
  • FLHX Street Glide 2006-2009, 2011-2016
  • FLHXI Street Glide 2006
  • FLHXS Street Glide Special 2014-2016
  • FLHXXX Street Glide Trike 2010-2011
  • FLRT Freewheeler 2015-2017
  • FLS Softail Slim 2012-2017
  • FLST Heritage Softail 2006
  • FLSTC Heritage Softail Classic 2000-2006, 2008-2014
  • 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 2008-2017
  • FLSTSB Softail Cross Bones 2008-2011
  • FLSTSC Softail Springer Classic 2007
  • 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
  • FLTRX Road Glide 2015-2016
  • FLTRX Road Glide Custom 2011-2013
  • FLTRXS Road Glide Special 2015-2016
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXD Dyna Super Glide 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 2008-2016
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDI Dyna Super Glide 2005-2006
  • FXDL Dyna Low Rider 2005, 2007-2009
  • FXDLI Dyna Low Rider 2005-2006
  • FXDWG Dyna Wide Glide 2010-2016
  • FXDX Dyna Super Glide Sport 2005
  • FXDXI Dyna Super Glide Sport 2005
  • 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
  • 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 2011-2017
  • XL883N Sportster Iron 883 2009-2017
  • XL883R Sportster 883R 2004-2010
  • XL1200C Sportster 1200 Custom 2004-2017
  • XL1200CX Sportster Roadster 2016-2017
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200T Sportster SuperLow 2014-2017
  • XL1200V Sportster Seventy-Two 2012-2016
  • XL1200X Sportster Forty-Eight 2010-2017

Customer Reviews

Awesome sound and easy installation

out of 5
5 stars

By on October 2, 2016

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.

5 stars
5 stars

Cobra slip ons.

out of 5
5 stars

By on April 10, 2017

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.

5 stars
5 stars

Awesome sound

out of 5
5 stars

By on June 28, 2017

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).

5 stars
5 stars

Questions & Answers

  • Does it comes with complete brackets?

    By: Guest

    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

  • is the baffle removable

    By: mike

    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

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

    I have a 2001 fatboy cardurated.

    By: Jmichaud228

    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

  • 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?

    By: Guest

    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

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

    By: Darrell

    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

  • Does it sound good?

    By: L9vey

    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

  • Will these fit the 2003 HD Electra glide Police Edition ?

    By: Jerry

    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

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

    By: Chris

    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

  • 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.

    By: Patty g.

    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

  • Will these bolt on to the cobra true dual headers

    By: Road king rick

    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

  • Will these fit a 2016 Fatboy?

    By: Rob

    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

  • Will these fit my 2013 superglide custom?

    By: Jeff

    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

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

    By: Roy P.

    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

  • Quantity?

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

    By: snowbear

    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