Vance & Hines PCX Eliminator 300 Slip-On Mufflers For Harley Softail (2018–2024)
Flat-Track Race Styling Meets Advanced PCX Catalyst Performance
Inspired by Vance & Hines’ championship-winning flat-track race bikes, the PCX Eliminator 300 Slip-On Mufflers bring a sleek, muscular aesthetic and a deep, dirt-tracker growl to the Milwaukee-Eight Softail platform. Designed for 2018 through 2024 Harley-Davidson Softail models, these 3-inch diameter slip-ons feature precision CNC-machined billet end caps and seamlessly match the factory heat shields for a integrated look.
Equipped with Vance & Hines’ proprietary PCX™ (Power Chamber Exhaust) technology, each muffler houses a chambered high-flow catalyst cartridge that increases low-to-mid-range torque while keeping exhaust heat down and ensuring 49-state emissions compliance.
Technical Specifications & Product Details
| Feature / Metric | Product Specification | Rider Benefit |
|---|---|---|
| Brand / Manufacturer | Vance & Hines (Made in USA) | Race-proven engineering, precision fitment, and durable construction |
| Muffler Body Diameter | 3-Inch (76.2 mm) Mild Steel Body | Slim, aggressive profile that complements the Softail frame layout |
| End Cap Design | CNC-Machined Billet End Caps | Adds a modern, race-inspired accent to the rear of the bike |
| Internal Technology | PCX™ High-Flow Catalyst Cartridge | Enhances mid-range torque delivery while reducing rider-felt heat |
| Finish Options | Show-Quality Chrome or High-Temp Wrinkle Black | Finishes are matched to blend seamlessly with factory head pipe heat shields |
| Emissions Rating | 49-State Federal Emissions Compliant | Clean, EPA-compliant performance expansion without loss of power |
PCX Technology & Engine Performance
High-Flow Catalyst & Mid-Range Acceleration
Standard open exhausts can cause a loss of backpressure, resulting in a sluggish low-RPM throttle response. The PCX™ (Power Chamber Exhaust) cartridge uses a double-matrix chambered high-flow catalyst. This creates effective exhaust pulse scavenging to boost torque right in the primary 2,000 to 4,000 RPM cruising range.
Rider Comfort & Thermal Reduction
By positioning the high-flow catalyst downstream, PCX technology helps reduce radiated exhaust heat—lowering temperatures at the foot pegs and passenger area compared to unshielded stock exhaust systems.
Vehicle Compatibility Guide
The Eliminator 300 slip-ons (Part #16312 Chrome / #46312 Black) fit standard duel-muffler Softail models equipped with factory staggered head pipes:
Compatible Harley-Davidson Softail Models (2018–2024)
- Street Bob / Street Bob 114: FXBB, FXBBS (2018–2024)
- Low Rider / Low Rider S / ST: FXLR, FXLRS, FXLRST (2018–2024)
- Softail Standard: FXST (2020–2024)
- Softail Slim: FLSL (2018–2021)
- Fat Boy / Fat Boy 114: FLFB, FLFBS (2018–2024)
- Breakout / Breakout 114: FXBR, FXBRS (2018–2024)
Fitment Note: Will not fit Softail models with 2-into-1 or single-side exhaust configurations such as the Sport Glide (FLSB), Fat Bob (FXFB), Heritage Classic (FLHC/S), Deluxe (FLDE), or FXDRS.
Step-by-Step DIY Installation Guide
Upgrading your Softail with PCX Eliminator 300 slip-ons takes approximately 30 to 45 minutes using standard shop tools.
Required Tools
- 3/8″ Drive Ratchet with 1/2″ and 9/16″ sockets
- Torque wrench (ft-lbs)
- High-temperature copper anti-seize lubricant
- Rubbing alcohol and a clean microfiber cloth
Step 1: Removal of Factory Mufflers
Ensure the motorcycle is completely cool and safely resting on a kickstand or lift. Loosen the factory Torx exhaust clamps connecting the stock mufflers to the OEM collector head pipes. Remove the rear mounting bolts from the frame support bracket under each muffler. Twist and gently pull the stock mufflers rearward off the head pipes.
Step 2: Preparing the PCX Eliminator 300s
Apply a thin coating of high-temperature anti-seize onto the expansion joints of the factory collector pipes. Slide the new heavy-duty Torca barrel clamps onto the front inlets of your Vance & Hines Eliminator 300 slip-ons.
Step 3: Mounting and Alignment
Slide the Eliminator 300 mufflers onto the head pipes until they seat against the stopper stops. Align the integrated mounting channels with your frame’s rear bracket points. Thread in the mounting bolts finger-tight. Check from the rear to confirm both 3-inch muffler bodies and CNC end caps sit level and parallel.
Step 4: Torque Specs & Degreasing Wipe-Down
Torque the rear mounting bracket bolts to 18 ft-lbs and the front barrel clamps to 38–42 ft-lbs.
CRITICAL WARNING: Clean all chrome or black surfaces thoroughly with rubbing alcohol prior to starting the engine. Fingerprints or oil residues left on the exhaust will permanently bake into the finish when heated!
Frequently Asked Questions
Is fuel re-tuning required for these slip-ons?
Because PCX technology maintains proper backpressure and airflow balance, fuel tuning is optional if installed on an otherwise stock bike. However, adding a tuner like the Vance & Hines Fuelpak FP4 will optimize throttle response and air-fuel ratios for maximum performance.
Can I install quiet baffles in the PCX Eliminator 300?
No. Due to the internal chambered catalyst core of the PCX cartridge, these slip-ons are not compatible with standard optional quiet baffle inserts (e.g., #21947).
### Order Your Vance & Hines PCX Eliminator 300s Today
Give your 2018–2024 Milwaukee-Eight Softail a flat-track racing sound, enhanced low-end torque, and clean billet styling. Order the Vance & Hines PCX Eliminator 300 Slip-On Mufflers today with fast shipping!
