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S&S Grand National Slip-On Exhaust

(24 reviews)

Item: 359403

$296.96 – $1135.25

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Select Your Vehicle - Fitment Guaranteed

S&S Grand National Slip-On Exhaust


  • Show quality finish mufflers
  • Race inspired Grand National end cap
  • High flow baffle design
  • Aggressive sound and excellent throttle response
  • SAE J2825 sound level compliant mufflers
  • Sold in pairs
  • 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 Varies (make selection above)
Finish Varies (make selection above)
Muffler Diameter Varies (make selection above)
Muffler End Cap Varies (make selection above)
Muffler Sleeve 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 1995-2021
  • 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 Ultra Classic Electra Glide 1995-2016
  • FLHTCUI Ultra Classic Electra Glide 1995-2006
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2016
  • FLHTI Electra Glide Standard 2003-2006
  • FLHTK Electra Glide Ultra Limited 2010-2023
  • FLHTKL Electra Glide Ultra Limited Low 2015-2019
  • FLHX Street Glide 2006-2009, 2011-2023
  • FLHXI Street Glide 2006
  • FLHXS Street Glide Special 2014-2023
  • FLSL Softail Slim 2018-2021
  • 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 2015-2016
  • FLTRX Road Glide Custom 2011-2013
  • 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
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Street Bob 2007-2017
  • FXDBC Dyna Street Bob Limited 2016
  • FXDBI Dyna Street Bob 2006
  • FXDBP Dyna Street Bob 2016
  • 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 1995-2005, 2007-2009
  • FXDLI Dyna Low Rider 2004-2006
  • FXDLS Dyna Low Rider S 2017
  • FXDS-CONV Dyna Convertible 1995-2000
  • FXDWG Dyna Wide Glide 1995-2005, 2007-2008, 2010-2017
  • FXDWGI Dyna Wide Glide 2004-2006
  • FXDX Dyna Super Glide Sport 1999-2005
  • FXDXI Dyna Super Glide Sport 2004-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXFB Softail Fat Bob 2018-2019
  • FXFBS Softail Fat Bob 114 2018-2023
  • FXLR Softail Low Rider 2018-2020
  • FXLRS Softail Low Rider S 2020-2024
  • RH975 Nightster 2022-2024
  • RH975S Nightster Special 2023-2024
  • XG500 Street 500 2015-2020
  • XG750 Street 750 2015-2020
Honda
  • MSX125 Grom 125 2022
Indian
  • FTR 1200 2019-2020
  • FTR 1200 S 2019-2020

Customer Reviews

Write Review

Unexpected surprise

By   on  Verified Purchaser

I've tried Cobra slip-ons and now S&S slip-ons. Both are great but the S&S have a little more low at idle. Throw the db limiters in the trash. These slip-on's sound great.


Huge difference.

By   on  Verified Purchaser

Bike sounds like a HOG now, little more horses to it.


Great sound for keeping the headers stock

By   on  Verified Purchaser

The mufflers look and sound amazing. Such an improvement over the stock ones.


These sound perfect to me

By   on 

I did a lot of searching to come up with mufflers with the right sound, torque, good looks and price for my 2019 Harley Ultra. These sound perfect to me with the dB reducers out and baffles in. With dB reducers in it pretty much sounds stock. I'm running stock headers and air cleaner. Everything about these mufflers fits a full dresser m8. We'll see how the chrome holds up over time.


Grand Nationals

By   on  Verified Purchaser

Easy to install. It sounds so much better than stock.


Sounds way better

By   on  Verified Purchaser

Sounds way better than what I had...


Nice

By   on  Verified Purchaser

Nice clean product.


S&S mufflers

By   on  Verified Purchaser

Fast easy install.


High quality

By   on 

The only reason for the four star overall rating was that I had hoped the slip-on mufflers would be a bit quieter at higher speeds than they are. They are very good looking and high quality construction.


Would recommend this product

By   on  Verified Purchaser

The exhaust for my Harley Davison Nightster looks great, the sound is amazing, like night and day compared to the stock exhaust and easy to install.


S&S Grand National Mufflers

By   on  Verified Purchaser

Nice sound, look great.


Nailed it!

By   on  Verified Purchaser

I got this for my 2019 Indian FTR and am very happy I did so! The quality and sound is exactly what I was looking for. Thank you


Thank you

By   on  Verified Purchaser

Good quality, easy install, and it sounds Sweet!


Sweet

By   on  Verified Purchaser

Nice upgrade from the SEIIs I had on the lowrider. Sound and perform much better.


Exceeded expectations.

By   on  Verified Purchaser

This exhaust tip has exceeded all expectations. It shaves off some weight and gives the bike a nice low tone. If you remove the decibel reducer it gains quite a bit of volume but not so much that it’s obnoxious. I underestimated how good the pipe would sound even with the cat still in place. Worth the price if you’re looking to spice up the sound profile of your FTR. I’ll be honest there really is no noticeable increase in performance although it may show an increase in power on a dyno.


Fast

By   on  Verified Purchaser

Great sound for a slip on. Very deep tone at high rpm.


S&S grand national muffler 4" slip on

By   on  Verified Purchaser

I purchased this muffler for my 2015 harley davidson xg 500 street bike. What a difference! The sound is throaty without being annoying. The fit and finish are top notch, and I like the fact that it's ceramic coated so it will look good for years to come. All in all, I give this one a big thumbs up.


S&S Grand National Slip-On Review

By   on  Verified Purchaser

Sound and look great.


Great sound, quiet when need be...until you get on it! Lovem'

By   on  Verified Purchaser

I purchased a 2014 Fat Bob a month ago with 7500 miles. They took the stock baffles out and ran like crude! I bought the S&S slip on kit. Easiest install Ever. The exhaust is loud when you get on it. My bike runs like it's brand new.


S&S Grand National

By   on  Verified Purchaser

These slipons look and sound great on my 2020 Heritage. Low and midrange tourque is fantastic on this 107 without any other mods. Fast free shipping!


S&S slip on

By   on  Verified Purchaser

All I can say is that I’m very satisfied with results. They look awesome and the sound is fantastic. I get positive comments everywhere I go. Great product and I recommend. 100% satisfied


Great value

By   on  Verified Purchaser

Great value, easy install, and fast delivery. These mufflers have a nice low rumble with the baffles installed.


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Questions & Answers

Ask Question

Does is a fit on a 2023 harley davidson nightster special

Yes, as long as you select that 2023 Nighster Special before adding to your cart, you would receive the correct slip-on to fit that bike.

By Andy
Answer Question

Do the grand national slip ons use the original Harley muffler mount or does s&s provide it's own mount for there mufflers

These would mount just like the OEM mufflers. No additional parts/pieces needed.

By Andy
Answer Question

Do these come with all hardware needed for install?

Do these come with all hardware needed for install? When will the black ones be back in stock?

Yes, everything that would be needed for installation would be included.

By Andy
Answer Question

Do they come in crome

Yes, they are available in chrome. Once you select your year/make/model, it will give you an option for color.

By Andy
Answer Question

Is tihs fit to a 2020 low rider s?

Is legal to California?

Yes, that 2020 FXLRS Low Rider S is one of the bikes you can choose for these slip-ons.

By Andy
Answer Question

is ecm calibration required?

Typically, it is not necessary to have the bike calibrated/tuned for only the installation of slip-on's.

By Andy
Answer Question

Will these fit 2020 Lowrider s

Provided you select the correct year/model machine before adding to your cart, you should have no problem fitting these on your bike.

By Andy
Answer Question

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