Product Description
SP Concepts Street Pro 4.5" Slip-On Mufflers for 2017-2026 Harley Touring
Upgrade the sound of your Milwaukee-Eight Touring motorcycle with SP Concepts Street Pro 4.5" Slip-On Mufflers. Designed for riders who want a deeper, more aggressive exhaust note without replacing their entire exhaust system, these performance slip-ons deliver the unmistakable Harley-Davidson rumble with straightforward installation and a clean, custom appearance.
Featuring a large 4.5-inch muffler body and perforated core baffle, the Street Pro mufflers produce a deep, throaty exhaust tone that complements the Milwaukee-Eight engine. Whether you're cruising the highway or accelerating through the gears, these slip-ons offer an aggressive sound upgrade over the factory mufflers.
Designed to work with the factory header pipes, the Street Pro mufflers retain the original catalytic converter when installed with the stock exhaust headers. According to SP Concepts, no ECM tuning is required for installation on an otherwise stock motorcycle, making these an excellent option for riders looking to improve exhaust sound without the additional expense of a complete exhaust system.
Fitment
- 2017-2026 Harley-Davidson Milwaukee-Eight Touring models with compatible factory-style exhaust headers
- Road Glide and Road Glide Special
- Street Glide and Street Glide Special
- Road King and Road King Special
- Electra Glide and Ultra Limited
- Road Glide Limited
- Applicable CVO Touring models
Note: Fitment varies by model and production year. Not designed for Harley-Davidson Trike models. Refer to the vehicle fitment information before ordering.
Features
- 4.5" Muffler Design: Large-diameter muffler bodies deliver a substantial custom appearance and deep exhaust tone.
- Perforated Core Baffles: Designed to produce a deep, aggressive exhaust note while allowing exhaust gases to flow through the mufflers.
- Slip-On Installation: Replaces the factory mufflers while retaining the original header pipes.
- No Tuning Required: SP Concepts specifies that ECM tuning is not required when installed on an otherwise stock motorcycle.
- Retains Factory Catalytic Converter: Designed to work with factory exhaust headers without removing the stock catalytic converter.
- Black or Chrome Finishes: Available in finishes to complement different Harley-Davidson Touring builds.
- Made in the USA: Manufactured by SP Concepts.
- Sold as a Pair: Includes left and right slip-on mufflers.
Specifications
- Manufacturer: SP Concepts
- Product: Street Pro Slip-On Mufflers
- Muffler Diameter: 4.5 inches
- Baffle Design: Perforated Core
- Configuration: Dual Slip-On Mufflers
- Application: Harley-Davidson Milwaukee-Eight Touring
- Fitment Years: 2017-2026, applicable models
- Black Finish MPN: SPC-2-007-B
- Chrome Finish MPN: SPC-2-007-C
- Country of Manufacture: USA
Why Choose SP Concepts Street Pro Slip-Ons?
The SP Concepts Street Pro mufflers are an excellent choice for Touring riders who want a more pronounced exhaust note while keeping their existing header pipes. Their 4.5-inch design adds a bold appearance to the rear of the motorcycle, while the perforated baffles deliver the deeper sound many Milwaukee-Eight owners are looking for.
Unlike a complete exhaust system, these slip-ons are designed to replace only the factory mufflers. This allows riders to retain their existing exhaust header configuration and avoid the additional modifications commonly associated with full-system upgrades.
If you're looking for an aggressive-sounding set of Harley Touring slip-on mufflers with a straightforward installation and quality American-made construction, the SP Concepts Street Pro 4.5" mufflers are worth considering.
Installation & Emissions Information
These mufflers are designed for installation with compatible factory exhaust headers. SP Concepts states that no ECM tuning is required for a stock application. Motorcycles with additional engine or exhaust modifications may require separate tuning considerations.
Emissions Notice: Retaining the factory catalytic converter does not automatically establish emissions compliance or street legality. Verify applicable emissions and noise regulations for your motorcycle and location before installation.
Fitment
| 2025 | Harley-Davidson | FLHXU Street Glide Ultra | - | - |
| 2025 | Harley-Davidson | Street Glide EFI FLHX | - | - |
| 2025 | Harley-Davidson | Electra Glide Police FLHTP | - | - |
| 2024-2025 | Harley-Davidson | FLTRXSTSE CVO Road Glide ST | - | - |
| 2024-2025 | Harley-Davidson | Road Glide Police FLTRXP | - | - |
| 2023 | Harley-Davidson | FLHFB Electra Glide Highway King | - | - |
| 2022-2025 | Harley-Davidson | Road King Police FLHP | - | - |
| 2022-2023 | Harley-Davidson | FLHXST Street Glide ST | - | - |
| 2022-2023 | Harley-Davidson | FLTRXST Road Glide ST | - | - |
| 2021 | Harley-Davidson | FLH Electra Glide Revival | - | - |
| 2020-2024 | Harley-Davidson | FLTRK Road Glide Limited | - | - |
| 2019-2022 | Harley-Davidson | FLHT Electra Glide Standard | - | - |
| 2018-2025 | Harley-Davidson | FLTRXSE CVO Road Glide | - | - |
| 2017-2026 | Harley-Davidson | FLHX Street Glide | - | - |
| 2017-2026 | Harley-Davidson | FLTRX Road Glide | - | - |
| 2017-2025 | Harley-Davidson | FLHRXS Road King Special | - | - |
| 2017-2025 | Harley-Davidson | FLHXSE CVO Street Glide | - | - |
| 2017-2024 | Harley-Davidson | FLHTK Ultra Limited | - | - |
| 2017-2024 | Harley-Davidson | Electra Glide Police FLHTPI | - | - |
| 2017-2023 | Harley-Davidson | FLTRXS Road Glide Special | - | - |
| 2017-2023 | Harley-Davidson | FLHXS Street Glide Special | - | - |
| 2017-2022 | Harley-Davidson | FLHR Road King | - | - |
| 2017-2021 | Harley-Davidson | FLHTKSE CVO Limited | - | - |
| 2017-2019 | Harley-Davidson | FLHTKL Ultra Limited Low | - | - |
| 2017-2019 | Harley-Davidson | FLHTCU Electra Glide Ultra Classic | - | - |
| 2017-2019 | Harley-Davidson | FLTRU Road Glide Ultra | - | - |
| MPN | SPC-2-007-B |