Rinehart Racing 4″ Slip-On Mufflers For Harley Freewheeler (2015–2016)
Signature Sound and Performance Tailored Specifically for the Freewheeler Trike
Elevate the power, response, and deep exhaust note of your Twin Cam trike with Rinehart Racing 4″ Slip-On Mufflers. Custom-engineered specifically for 2015 and 2016 Harley-Davidson Freewheeler (FLRT) models, these slip-on mufflers replace restrictive factory exhaust cans with Rinehart’s legendary race-proven baffle design, delivering a rich, throaty V-Twin rumble without harsh cabin rumble or highway drone.
Handcrafted in the USA from heavy-gauge steel, these 4-inch mufflers feature CNC-machined billet aluminum end caps and an optimized internal core length designed to match the unique body cutouts and exhaust length of the Freewheeler chassis. Experience improved low-end torque, cooler running temperatures, and a bold rear stance that complements your trike’s hot-rod style.
Technical Specifications & Product Details
| Feature / Metric | Product Specification | Rider Benefit |
|---|---|---|
| Brand / Manufacturer | Rinehart Racing (Made in USA) | Trusted American manufacturing quality and premium V-Twin exhaust engineering |
| Muffler Body Diameter | 4.0-Inch Outer Diameter Canister | Fills out the Freewheeler rear body lines perfectly for a classic hot-rod aesthetic |
| Baffle Technology | High-Flow Louvered Performance Core | Unlocks torque and horsepower while generating a deep, iconic exhaust note |
| End Cap Material | CNC-Machined Aircraft Billet Aluminum | Provides high thermal resistance and sharp styling that resists fading or peeling |
| Finish Options | Show Chrome or High-Temp Black with Billet Caps | Coordinates effortlessly with OEM engine chrome or custom darked-out themes |
Engine Performance & Power Output
### Optimized Backpressure for Twin Cam 103 Engine
The 2015–2016 Harley-Davidson Freewheeler is powered by the high-output Twin Cam 103ci engine. Stock mufflers trap heat and create excessive backpressure, which chokes engine performance—especially under the heavier weight of a three-wheeled chassis. Rinehart’s 4″ slip-on mufflers feature a specially tuned performance baffle that improves exhaust gas scavenging, increasing torque where trikes need it most: right off the line and through mid-range acceleration.
### Key Performance Benefits
- Horsepower & Torque Gains: Measurable gains across the entire powerband when replacing stock mufflers.
- Lower Thermal Load: Improved exhaust velocity helps carry heat away from the rider and passenger area.
- Deep V-Twin Acoustic: Delivers a deep bass tone at idle and a crisp, authoritative bark under hard acceleration.
Vehicle Compatibility Guide
Rinehart Racing 4″ Slip-On Mufflers (Part #500-0104 Chrome / #500-0105 Black) are engineered for direct, 100% bolt-on fitment on the 2015–2016 Harley-Davidson Freewheeler trike platform:
### Harley-Davidson Freewheeler Models (2015–2016)
- Harley-Davidson Freewheeler: FLRT Twin Cam 103ci (2015)
- Harley-Davidson Freewheeler: FLRT Twin Cam 103ci (2016)
Fitment Note: Engineered specifically for 2015–2016 Freewheeler trike models with factory head pipes. Will not fit two-wheeled Touring models or Milwaukee-Eight (2017+) engine setups without appropriate header adapters.
Step-by-Step DIY Installation Guide
Upgrading your Freewheeler trike exhaust to Rinehart 4″ Slip-Ons takes under 45 minutes using basic hand tools.
### Required Tools
- 3/8″ Drive Ratchet with 1/2″ and 9/16″ sockets
- Torca clamp tool or combination wrench set
- Penetrating lubricant
- Clean microfiber towel
### Step 1: Removal of Stock Freewheeler Mufflers
Ensure the engine and exhaust system are completely cool. Spray a light amount of penetrating oil onto the inlet joints of the factory mufflers. Remove the rear frame mounting bolts holding the stock mufflers under the rear body work. Loosen the exhaust pipe clamps at the head pipe connection, then gently twist and slide the stock mufflers rearward off the head pipes.
### Step 2: Preparing New Clamps & Alignment
Slide new 2-inch heavy-duty barrel exhaust clamps over the expansion inlets of your new Rinehart 4″ slip-ons. Align the inlet end over the stock head pipe outlets.
### Step 3: Mounting the Rinehart 4″ Mufflers
Slide the Rinehart mufflers forward onto the header pipes until fully seated. Align the rear bracket mounting points with the trike chassis frame mounts. Finger-tighten the rear mounting bolts, adjust the tips so they sit centered in the body openings, and torque all hardware and clamps to factory specs.
Frequently Asked Questions
### Do I need to re-tune my 2015–2016 Freewheeler after installing these slip-ons?
No. If your 2015–2016 Freewheeler has the stock air cleaner and factory head pipes, an ECU tune is not strictly required. However, adding a high-flow air intake and an aftermarket tuner will maximize power gains and optimize fuel-to-air ratios.
### Are these mufflers the same length as standard two-wheel Touring slip-ons?
No. Rinehart specifically designs Freewheeler slip-ons to match the exact rear body cutouts and shorter overall frame clearance of the FLRT trike chassis, ensuring a flush, factory-like appearance.
### Order Your Rinehart 4″ Freewheeler Slip-Ons Today
Give your 2015–2016 Harley-Davidson Freewheeler the performance, sound, and custom billet style it deserves. Order your **Rinehart Racing 4″ Slip-On Mufflers** today with fast shipping!
