Harley-Davidson Softail Slip-On Mufflers
Unleash the roar with the ultimate Harley Softail slip-on exhaust upgrade. At Boneshakers, we don’t do subtle. Built in North Carolina and engineered to deliver raw power and deep tone, our slip-ons make your bike the loudest on the block. Let the road hear you coming.
Thunderous Rumble. Clean Tone.
Ear-piercing volume isn’t everything. Our slip-ons bring the noise and aggression, but they’re never whiny or shrill.
Designed with expertly tuned chambers, bigger internal cores, controlled expansion, and a megaphone-style body that launches sound down the road, our revolutionary Harley-Davidson Softail slip-on mufflers produce a full, low-frequency rumble.
Every rider has their own preferences when it comes to their bike’s signature voice. That’s why we make three unique models: Boneshakers (loud), Jackhammers (louder), and Bullies (loudest).
Why upgrade? Factory systems are engineered to meet noise regulations. Tone is an afterthought. Our slip-ons crank the volume while making your bike’s roar deeper, heavier, fuller, cleaner, and more resonant. One rev is all it takes to become a Boneshakers believer.
Beyond sound, our slip-ons are a simple, hassle-free motorcycle exhaust upgrade you can handle on your own. The cat-back system uses your Softail’s existing mounting points and hardware, doesn’t alter or remove emissions catalysts, and preserves the factory geometry.
Buyer’s Guide: How to Choose Optimal Softail Slip-On Mufflers
Each of our Harley Softail slip-on exhaust models brings its own unique flavor to the road.
Not sure which of our motorcycle slip-on mufflers is right for you? Start by considering your riding style.
Long-distance touring adventures? Our Boneshakers’ deep, consistent drone will prevent volume fatigue.
Blipping the throttle to turn heads around town? Go all-in with the near-deafening volume of our Bullies.
Looking for a versatile, middle-of-the-road option that’s great for quick jaunts and all-day journeys alike? Jackhammers are for you.
Keep these specs in mind:
- Overall muffler length
- Chamber size
- Baffle configuration
- Internal core diameter
Just like music speakers, larger cans deliver larger sounds. Roomier Softail slip-on mufflers let the soundwaves roll, rather than snap. Our megaphone shape projects the note ahead, taming its sharpness without compromising volume.
In-the-know riders don’t choose Boneshakers slip-ons just for the awesome volume and tone. Fitment and performance are key factors to keep in mind when picking out slip-ons.
Long story short: If your slip-ons don’t fit just right, you’re going to have problems. Our Harley Softail slip-on exhaust mods do what they claim: slip on. You won’t need to hire a pro or get a wrenching degree. Slip ‘em on and get back to riding an hour later. Sweet.
Many riders who use our Softail slip-on mufflers even report modest performance gains. They’re carefully tuned to improve exhaust flow for a throttle response that pulls and roars like no other (especially when paired with a tuner).
Why Boneshakers Are the Best in the Business
At Boneshakers, we engineer and build slip-ons for riders who refuse to settle for good enough.
Proudly built in North Carolina, our slip-ons are rugged, reliable, and made to hold up for the long haul. From classic polished stainless steel to ultra-tough black Cerakote, we use top-tier materials and mind the details.
What you get:
- Durable, American-made Softail slip-on mufflers
- Straightforward installation
- Performance-driven engineering
- Free shipping
- Deep, clean tone
- Thunderous volume
Give your bike the rockstar treatment.
FAQ
Will these slip-ons alter my mid-pipes or factory headers?
Bullies are the loudest Harley-Davidson slip-on mufflers out there. While all of our Harley-Davidson slip-on exhaust options will turn your bike into a beast, Bullies approach deafening decibel levels.
No, your mid-pipes and factory headers won’t be altered. You’re only modifying the exhaust system’s final stage (the rear section where pressure waves exit). In other words, you’re not redesigning the complete exhaust path; you’re reshaping the airflow and tone.
Will these slip-ons make my bike noticeably louder?
Yes, our Harley Softail slip-on exhaust upgrades are the real deal. With that said, thunderous volume isn’t the only reason to use our Softail slip-on mufflers. They’re famous for enhancing tone by altering how sound waves expand on their way out, creating a fuller, deeper rumble.
The difference isn’t only evident when your bike’s under load. You’ll enjoy the upgrade while idling, too.
Do I need to tune my bike after installing slip-ons?
Tuning isn’t always required, but it’s recommended to maximize performance gains. Whether or not you should tune depends on how much the bike’s airflow changes after the upgrade.
Most modern motorcycles are able to adapt to minor exhaust mods with their factory ECU programming. But if your new Softail slip-on mufflers produce significantly more airflow than your ride’s stock configuration, we recommend adjusting its air-fuel ratio.
Is it difficult to install Boneshakers slip-ons?
Nope. Most users are able to install their slip-on exhaust system in under an hour using standard hand tools you probably already own. No fabrication or cutting required.
Here’s the basic installation process:
- Remove your bike’s stock muffler.
- Slide the slip-on in place.
- Align the mounting brackets.
- Tighten the clamps.
Are these aftermarket slip-on exhaust systems legal?
Before continuing with your Harley Softail slip-on exhaust upgrade, we recommend checking your local noise ordinances. Some areas have strict limits on decibel output, and these Softail slip-on mufflers get seriously loud.