Product Description
Horsepower Inc. Full Length Stainless 2-1 Exhaust for Harley Touring
Unleash the performance potential of your Harley-Davidson Milwaukee-Eight with the Horsepower Inc. (HPI) Full Length Stainless 2-Into-1 Exhaust. Handcrafted in the USA, this premium performance exhaust combines precision TIG-welded stainless steel construction, aggressive styling, and the unmistakable sound that has made HPI a popular choice among performance Harley-Davidson enthusiasts.
Designed for 2017-2026 Harley-Davidson Touring models equipped with Milwaukee-Eight engines, the HPI Full Length Exhaust features a true 2-into-1 configuration engineered to promote efficient exhaust flow and support increased horsepower and torque when paired with proper engine tuning. Whether you're upgrading a stock Milwaukee-Eight or building a high-performance bagger, this exhaust offers an excellent foundation for your performance goals.
Every HPI exhaust is handmade in-house using stainless steel construction and precision TIG welding. The perforated stainless steel muffler interior delivers a deep, aggressive exhaust note while maintaining the distinctive appearance of a full-length bagger exhaust system.
Horsepower Inc. exhaust systems are particularly popular among riders building performance-oriented Road Glides, Street Glides, Road Kings, and other Milwaukee-Eight Touring motorcycles. From performance camshaft upgrades to larger-displacement engine builds, the HPI exhaust is designed for enthusiasts who demand quality construction, distinctive sound, and strong performance potential.
Fitment
- 2017-2023 Harley-Davidson Touring models with standard Milwaukee-Eight engines
- 2023.5-2026 Harley-Davidson CVO Touring models with compatible Milwaukee-Eight engines
- 2024-2026 Harley-Davidson Touring models with compatible Milwaukee-Eight engines
- Compatible applications include Road Glide, Street Glide, Road King, and select CVO Touring models
Important Fitment Note: Select the correct exhaust configuration for your motorcycle. HPI offers different applications for 2017-2023 standard Milwaukee-Eight Touring models and 2023.5+ CVO / 2024+ Milwaukee-Eight Touring models. Exhaust configurations are not universally interchangeable. Verify your exact model and year before ordering.
Features
- Premium full-length 2-into-1 performance exhaust system for Harley-Davidson Milwaukee-Eight Touring models
- Handcrafted in the USA by Horsepower Inc.
- Durable stainless steel construction
- Precision TIG-welded construction for strength and a distinctive appearance
- Perforated stainless steel muffler interior
- Designed to promote efficient exhaust flow and support horsepower and torque improvements
- Deep, aggressive exhaust tone with the unmistakable HPI sound
- Full-length design complements traditional Harley-Davidson bagger styling
- Excellent choice for stock and performance-modified Milwaukee-Eight engines
- Suitable for performance-oriented builds featuring upgraded camshafts, intake systems, and other engine modifications
- Includes the applicable installation hardware, brackets, and clamps supplied by HPI
- Stainless steel finish
Specifications
- Manufacturer: Horsepower Inc. (HPI)
- Manufacturer Part Number: HPI-EXM8B-S
- Product Type: Full-Length Performance Exhaust System
- Exhaust Configuration: 2-Into-1
- Material: Stainless Steel
- Finish: Stainless
- Construction: Handcrafted, TIG-Welded
- Muffler: Perforated Stainless Steel Interior
- Engine Compatibility: Harley-Davidson Milwaukee-Eight
- Model Years: 2017-2026, depending on selected application
- Country of Manufacture: USA
Performance & Installation Notes
The HPI Full Length Stainless Exhaust is designed to support improved exhaust flow and performance potential on Milwaukee-Eight engines. Actual horsepower and torque results depend on engine displacement, camshaft selection, compression ratio, intake configuration, and engine calibration.
Engine Tuning: Proper fuel and ignition calibration is recommended after installing a complete performance exhaust system. A professional dyno tune can help optimize engine operation and performance for your specific motorcycle and modifications.
Oxygen Sensors: Verify oxygen sensor and adapter compatibility with the selected exhaust configuration and your motorcycle's model year before installation.
Installation Hardware: HPI supplies the applicable mounting hardware, brackets, and clamps with new exhaust systems. Additional mounting components may be required for motorcycles with certain aftermarket modifications.
Stainless Steel Care: Before starting the motorcycle after installation, thoroughly clean the exhaust to remove fingerprints, oils, and installation residue. This helps prevent markings from becoming permanently discolored when the exhaust reaches operating temperature. Stainless steel discoloration during use is normal.
Availability & Ordering Information
Horsepower Inc. exhaust systems are handcrafted in the USA, and availability may vary depending on current inventory and manufacturing schedules. Extended production and fulfillment lead times are possible.
Contact for Availability: Please contact Get Lowered Cycles for current availability and estimated shipping information before ordering if delivery timing is important.
Emissions Notice
This performance exhaust system may not comply with emissions regulations for pollution-controlled motorcycles. Horsepower Inc. states that its performance exhaust systems are not legal for sale or use in California on pollution-controlled motor vehicles and does not ship these systems to California. Check applicable federal, state, and local regulations before purchasing or installing.
| MPN | HPI-EXM8B-S |