Vance and Hines Twin Slash 3-inch Slip-Ons - Harley Softail Fatboy
About Vance and Hines
Vance & Hines has been building motorcycle exhaust since 1979 and has run factory-backed drag and King of the Baggers programs that feed straight back into its street products. Systems like the Torquer and the 2-into-1 designs are engineered around real dyno work, not just sound — which is why they show up on so many tuned Milwaukee-Eight and Twin Cam builds.
Upgrade your Harley-Davidson Softail Fatboy with Vance and Hines Twin Slash 3-inch slip-on mufflers, designed to deliver an aggressive exhaust note. These slip-ons feature PCX chambered high-flow catalyst technology to boost mid-range and top-end torque, transforming your ride's performance and sound.
Why riders pick this
- PCX chambered high-flow catalyst for increased torque
- Throaty, aggressive exhaust note
- Full coverage heat shields for a clean look
- Direct slip-on installation onto stock headers
- Engineered for 2007-2017 Harley-Davidson Softail Fatboy
Vance and Hines Twin Slash 3-inch slip-ons are engineered for a direct fit onto your stock headers, making installation straightforward for 2007-2017 Harley-Davidson Softail Fatboy models. Riders looking to enhance their bike's voice and powerband will appreciate the deep, throaty sound and the tangible torque gains these mufflers provide. The full-coverage heat shields ensure a clean, integrated look that complements your Softail's lines.
Unleash More Usable Power
- PCX chambered high-flow catalyst cartridge for improved exhaust flow
- Increases torque across the powerband for better acceleration
- Signature throaty exhaust note that commands attention
- Full coverage heat shields for a seamless appearance
- Designed for straightforward slip-on installation onto stock headers
Dialing In Your Exhaust Upgrade
These Twin Slash slip-ons are an excellent first step for riders wanting more performance and sound from their Softail Fatboy. While they're designed to perform well with stock headers, pairing them with a proper fuel-air tune can further optimize the fuel map, maximizing the performance benefits from the high-flow catalyst. Consider a Vance and Hines Fuelpak tuner to unlock the full potential of this exhaust upgrade.
Specifications
- Brand: Vance and Hines
- Manufacturer Part #: 16343
- Weight: 15.7 lb
- Category: Exhaust, Mufflers & Tips / Motorcycle Slip-On
Common questions
Will these slip-ons fit my Softail Fatboy?
Yes, these Vance and Hines Twin Slash slip-ons are designed specifically for 2007-2017 Harley-Davidson Softail Fatboy models. Please confirm your bike's model year before ordering as 2018 and newer Softails use different mounting.
Do I need a tuner or fuel management with these slip-ons?
Slip-ons alone may not strictly require a retune, but a fuel-air tune can significantly enhance and maximize the performance gains from the high-flow catalyst and improved exhaust flow. It's recommended for optimal results.
What finish options are available for these slip-ons?
The Vance and Hines Twin Slash slip-ons for your Softail Fatboy are available in either a classic chrome or a sleek matte black finish to match your bike's style.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Vance and Hines |
| TYPE | Motorcycle Slip-On |
| SKU | T14-611375 |
| WEIGHT | 15.7 lb |
