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Vance & Hines Twin Slash Dual Slip-On Exhaust

(13 reviews)

Item: 325911

$384.23 – $499.99

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Vance & Hines Twin Slash Dual Slip-On Exhaust

One of the best ways to ease into the customization of your machine is with the addition of some slip-on mufflers that will open up the performance of your bike along with dialing in a nice throaty and deep exhaust note.

These slip-ons give you the unique Vance & Hines twin slash look that's blue proof thanks to its 3" full coverage muffler heat shields wrapped around 2-1/2" muffler bodies built with louvered core baffles pre-installed.

  • 3" round with twin slash end treatment
  • Full coverage muffler heat shields
  • Made in the USA
Specification Details
Baffles Included Varies (make selection above)
CARB Approved Varies (make selection above)
Color Varies (make selection above)
Configuration Dual Muffler
Country of Origin USA
Engine Type Varies (make selection above)
Exhaust Diameter Varies (make selection above)
Finish Varies (make selection above)
Warranty 1 Year Manufacturer Warranty

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
  • FLRT Freewheeler 2015-2023
  • FLS Softail Slim 2012-2017
  • FLSS Softail Slim S 2016-2017
  • FLSTF Softail Fat Boy 2007-2017
  • FLSTFB Softail Fat Boy Lo 2010-2016
  • FLSTN Softail Deluxe 2007-2016
  • FLSTSB Softail Cross Bones 2008-2011
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Street Bob 2007-2017
  • FXDB Dyna Sturgis 1991
  • FXDBC Dyna Street Bob Limited 2016
  • FXDBI Dyna Street Bob 2006
  • FXDC Dyna Glide Custom 1992
  • 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 1993-2005, 2007-2009
  • FXDLI Dyna Low Rider 2004-2006
  • FXDS-CONV Dyna Convertible 1994-2000
  • FXDWG Dyna Wide Glide 1993-2005, 2007-2008, 2010-2016
  • 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
  • FXSTD Softail Deuce 2007
  • 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 2004-2008
  • XL883C Sportster 883 Custom 2004-2009
  • XL883L Sportster 883 Low 2005-2010
  • XL883L Sportster SuperLow 2011-2019
  • XL883N Sportster Iron 883 2009-2022
  • XL883R Sportster 883R 2004-2007
  • XL883R Sportster Roadster 2014-2015

Customer Reviews

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By   on  Verified Purchaser

Perfect fit in minutes.


By   on 

I like almost everything, look and sound good. The bolts would not screw into the weld nuts. Prior to installation I had to clean out the welded nuts with the correct size tap.


By   on  Verified Purchaser

Picture clearly shows that black upper heat shields. Ad said black heat shields are included but when the package arrived. Only included heat shields on the ship on portion. I was disappointed that I had to pay another $150 for upper black heat shields. They should make sure they mention if you have all chrome pipes that only the slip on portion shields are included. 2016 Harley Davidson FXDB Dyna Street Bob

High pitched.

By   on  Verified Purchaser

I bought these mufflers to get more volume. They certainly are louder. However, the sound is sharp and high pitched. I would prefer a fuller, more bass sound. The pipes do look good. 2020 Harley Davidson FLDE Softail Deluxe

Looks great!

By   on  Verified Purchaser

Looks great! Sounds good.

Slip on mufflers 2019 FXLR

By   on  Verified Purchaser

The mufflers look great very easy to install.

Best parts store around

By   on  Verified Purchaser

This is the second time I purchased mufflers from Parts Giant. The prices are the best and the service is fantastic.

Vance & Hines Twin Slash

By   on  Verified Purchaser

Decent sounding. Not quite as throaty as I would have liked, but much better than stock. An adventure to install (back bolts on stock mufflers removal and installation on Vance and Hines.)

My Review Part 2

By   on 

For me I don't care for the sound of the pipes. Not only EXTREMELY LOUD! They don't sound deep and ballzy like one would expect. Not sure how to describe but almost "tinny" (kind of like import cars with a loud exhaust vs Chevy small block with duals and headers) Now I can buy a part to slide into the pipes to tame the sound But that cost another $100. Although, the pipes seem well made and the chrome makes my bike pop!

Tim - Michigan

By   on 

I ordered these slip on's Tuesday morning and 36 hrs later I had my order. Now for the mufflers, the packing kept the pipes from scratching and all parts needed accept muffler clamp is included. I ordered chrome to match my 2008 Softail Deluxe 105th Anniversary. I know V&H are what most people put on to gain the Harley sound... But for me? a touch too loud. BUT these have guts you can buy to customize your sound!

Awesome all around

By   on  Verified Purchaser

Easy to install and sound awesome. Ordered on Sunday and received on Tuesday, so partsgiant really doesn't mess around when it comes to shipping and handling.

Not what I was hoping for.

By   on 

I installed these mufflers on my 2013 FLSTC when new. I hate the raspy sound. I have used V&H exhaust on over 20 Harleys previously and loved them, these sound cheap. Going to switch to true dual fishtail which I had on my 07 FLSTC and they sounded great.

Perfect combo of looks and sound

By   on 

Awesome delivery time and installed equally fast. Best overall sound, much better than stock from the rumble at idle to wide open. Look great as well. Very happy with these slip-ons.

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Questions & Answers

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Do they come with baffle

Yes, these mufflers would come with baffles already installed.

By Andy
Answer Question

I have a 2011 heritage classic, same issue, if i install do i need the fuel management? I have been told no and i have been told yes?

As you've noticed with other answers in the Q&A - it really depends on a variety of factors (intake, riding altitude &etc.) - not so much what bike you're putting the exhaust on to. Sure, your bike will run after installing the Vance & Hines slip-on mufflers, but it may not operate at peak performance. You could certainly try running the bike without changing fuel characteristics, but you won't be getting the most out of the exhaust as the OEM ECU can only make up for a limited range of fuel delivery shortcomings. An aftermarket fuel management system in the form of a Vance & Hines Fuelpak FP3 will completely mitigate any chance of less-than-optimal power output, and just as critically - throttle response. While lots of riders want as much power as possible, what's particularly noticeable is the way the engine responds to your throttle hand. If you want to avoid hesitation when you grab a big handful or having the bike stumble at a constant power setting, you will want to make some sort of fueling adjustment along with the installation of this exhaust.

By Staff
Answer Question

I have a 2015 wide glide.. If I install these slip on will my bike backfire without a fuel management system? I thought once installed your bike is good to go.

The answer is, maybe. It really depends on a variety of factors, and most often - backfiring is associated with how well the entire exhaust system is sealed up. Usually, it's caused by a leak in the exhaust somewhere. So long as the gaskets on the cylinder head to which the headers are attached are in good shape and the mufflers are installed nice n' straight, you may not have any problems. Still, since modern machines are tuned to run rather lean from the factory, exhaust gas temperatures are rather high and, upon the installation of this, or any other aftermarket exhaust system - you may still notice some backfiring as the engine will be running even more lean. This all depends on where you do most of your riding, and the type of the fuel that you put in your bike. In the event that you do find your bike backfiring, we do have one of the easiest-to-use fuel controllers on the market in the form of the Vance & Hines FP3 fuel management system. With that device, you simply tell it what bike you're riding, the type of exhaust you have and it does the rest. You just need a iOS or Android smartphone and the FP3 app to get it set up. Plus, with the Autotune feature, there's no need to make a visit to the dyno and you can easily re-tune your bike anytime you change the exhaust, air cleaner or any other part that effects the way air gets into or out of the combustion chamber. After all, if you're installing an exhaust to get better performance out of your bike (and the stock mufflers really choke performance) - you might as well go the whole hog and tune your bike with some sort of fuel management system. In this way, you'll be assured maximum performance, the best possible throttle response and minimal backfiring.

By Staff
Answer Question

Is it necessary to get the fuel management system after installing the V&H 3"slash slip-ons? Thanks

While you can often go ahead and install an exhaust (be it a slip-on or complete exhaust system) by itself; to get the most out of your bike, you're better off adjusting fueling to match. Any time you change the way air gets into, or out of, the engine - you will want to modify your bike's fueling in order to get the best possible throttle response and engine power output. Vance & Hines offers three kits that suit their exhausts perfectly as they've done most of the dyno testing in-house and have ready-made maps to work with most popular configurations. If you have a 2012 or newer model, there's a good chance that there's a Vance & Hines Fuelpak FP3 Autotuner available to fit your bike. With that kit, once it's properly configured with the aid of your smart phone - fueling is automatically adjusted while you ride using a myriad of your bike's OEM sensors to give you the best possible power output. For most fuel-injected models up to the 2013 model year, the Vance & Hines Fuelpak or Fuelpak LCD would be a wise choice since programming either of them is simple and - like the previously mentioned FP3 unit, they're very easy to install. There's also a simple map library available from the manufacturer for the Fuelpak/LCD which allows you to configure it to account for some of the most popular aftermarket accessories.

By Staff
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