2004-2022 Sportster Bob Cat 2:1 Exhaust Harley Davidson

The 2004-2022 Sportster Bob Cat 2:1 Exhaust for Harley Davidson delivers optimized exhaust flow and enhanced performance tailored specifically for Sportster models. Its 2:1 design improves torque and throttle response, providing a balanced power boost across the RPM range. Crafted for durability and a distinctive sound, this exhaust system elevates both the riding experience and the bike’s aesthetic appeal. Ideal for riders seeking expert-level performance upgrades without compromising reliability.

FEATURES

• Model Compatibility:
• Fits 2004–2022 Sportster models
• Does NOT fit:
• 2015–2016 XL1200T Super Low (unless converted to mid/forward controls)
• 2021–2022 Sportster S and Nightster
• Roadster with 13" shocks (shocks will contact muffler)
• Stepped Performance Headers: Stepped header design from 1 5/8" to 1 3/4" to 1 7/8" at the collector, flowing into a 2 1/4" muffler inlet—maximizing exhaust velocity and power output.
• Premium Construction & Sound: Produces a deep, boomy tone at idle—rich in character and engineered for a thrilling rider experience.
• O2 Sensor Ready: Includes both 18mm and 12mm O2 bungs to accommodate factory sensors.
• Required Retuning: All Sportster models (2004–2022) must be retuned when installing this exhaust for optimal performance.
• Finish Options (Part Numbers 615Z-31 / 615Z-32):
• A (ABQ) – Aluminum Sleeve
• B (BBQ) – Black Satin
• C (CBQ) – Carbon Fiber
• Dyno-Tested Power Gains: Increases low-end torque and horsepower by approximately 8–10% on stock motors with proper tuning.
• Complete Installation Kit: Includes heat shields, exhaust gaskets, bolt kit, and perforated baffle for easy setup.
• Endorsed by Dave Rash – “The Pope of Pipe”: "Not only does the pipe look good, it is a wonderfully sounding experience for the rider."