Vance & Hines PCX 3″ Round Twin Slash Slip-On Mufflers For Harley Softail 2007-2017

Vance & Hines PCX Twin Slash: Modern Torque for the Classic Softail

The Vance & Hines PCX 3″ Round Twin Slash Slip-Ons are the definitive exhaust upgrade for the 2007-2017 Harley-Davidson Softail lineup, including the Fat Boy, Heritage Classic, Deluxe, Slim, and Softail Slim. During this decade, the Twin Cam 96, 103, and 110 engines became the standard, and while these engines possess incredible potential, the factory mufflers often leave them sounding choked and restricted. The PCX series addresses this by integrating Power Chamber Exhaust (PCX) technology. This internal high-flow chambered catalyst increases backpressure in the mid-range, effectively smoothing out the powerband and providing the “low-end grunt” that Softail riders crave, all while delivering a richer, deeper roar that defines the American V-Twin experience.

Classic Aesthetics and Blue-Proof Durability

Visual appeal is paramount on a Softail, and the Twin Slash Slip-Ons do not disappoint. The 3-inch muffler bodies feature 220-degree full-coverage heat shields, precision-cut to ensure that the show-quality Chrome finish never suffers from the “blueing” or heat-induced discoloration common in single-wall pipes. The signature 45-degree twin-slash end treatment provides a clean, custom-shop look that complements both vintage-inspired and modern-style Softails. Because these are slip-ons, they maintain the bike’s original header pipes, allowing for a fast and effective transformation that significantly improves the bike’s presence on the road without the complexity of a full-system install.

Expert Tuning & Installation Advice

As specialists in the Twin Cam platform, we have found that the PCX internal baffle provides much better throttle response than the older “straight-through” designs. Pro Tip: Even with slip-on mufflers, the 2007-2017 EFI Softails run notoriously lean from the factory. To maximize the performance gains of the PCX technology and prevent excessive engine heat, we highly recommend a Vance & Hines Fuelpak FP3. This will calibrate your EFI system to match the increased airflow, ensuring a cooler-running engine and eliminating “popping” during deceleration. Installation Note: When installing on models like the Fat Boy or Heritage, always check the condition of your muffler gaskets and clamps. If the original clamps are rusted or stretched, replace them to ensure a leak-free seal. Always wipe the chrome down with rubbing alcohol before the first start to prevent fingerprints from being permanently etched into the finish.

The Signature Softail Soundtrack

The sound of the PCX Twin Slash is muscular and authoritative. At idle, it produces a rhythmic, low-frequency “thump” that is deep enough to be felt but refined enough for long-distance touring. Under acceleration, it opens up into a crisp, roaring bark that lets your presence be known without being excessively “raspy.” For the rider who wants a classic look with modern performance engineering, the Vance & Hines PCX 3″ Round Twin Slash Slip-Ons are the definitive choice for the 2007-2017 Softail era.

Fitment Note: Fits 2007-2017 Softail models. Will not fit 2008-2011 Rocker or 2013-2017 Breakout due to frame-specific mounting requirements.

Vance & Hines PCX 3″ Round Twin Slash Slip On Mufflers

One of the best ways to quickly and inexpensively customize your Harley is to add a set of slip-on mufflers. With the Twin Slash 3-inch slip-ons, you will get the benefit of increased performance and the bellowing, throaty growl of a Vance & Hines exhaust. In addition to the performance and sound, V&H fashioned a stylish look that’s blue proof thanks to full-coverage heat shields over the muffler bodies.

Features:

• PCX™ (Power Chamber Exhaust) technology
• Chambered high-flow catalyst cartridge designed to increase torque
• Full coverage heat shields
• 49-state emissions compliant
• Made in the USA
• Sold as a pair