Cable Driven™ 51mm Big Bore Throttle Body

Cable Driven™ 51mm Big Bore Throttle Body – CNC Ported Intake System (Black, 1.71" Runner)

High-Performance Airflow for Harley-Davidson Twin Cam (2006–2017)

The Cable Driven™ 51mm Big Bore Throttle Body is a precision-engineered intake upgrade designed to deliver increased airflow, horsepower, and torque to your Harley-Davidson Twin Cam engine. Flow bench-tested, dyno-proven, and fully CNC-machined in the USA, this throttle body offers a perfect balance of power gains and street reliability. With a brass throttle blade for improved stability and a sealed double roller bearing for smooth operation, it ensures unmatched performance and OEM-level compatibility — built for riders who demand both quality and precision.

⚠️ WARNING: Not legal for sale or use in California on any pollution-controlled motor vehicles. Refer to manufacturer documentation for emissions and compliance details.

Key Features

• Includes CNC ported throttle body, intake manifold, throttle cable bracket, flanges, and seals
• Flow bench-tested and dyno-proven to increase horsepower, torque, and throttle response
• Brass throttle blade minimizes deflection, ensuring accurate throttle position control
• Sealed double roller bearing ensures smooth, consistent throttle action under heavy load
• Fully CNC machined and internally ported for maximum flow and precision fitment
• Compatible with OEM electronics and cruise control
• Stock bolt pattern and air cleaner opening for direct installation
• Made in the USA with premium aluminum construction
• Emissions-related part — not legal for sale or use in California

Performance & Fitment

Optimized for Harley-Davidson Twin Cam Touring, Softail, and Dyna models (2006–2017), the Cable Driven™ 51mm Throttle Body is ideal for mildly to moderately built engines seeking stronger midrange power and smoother throttle control. It’s a direct-fit upgrade for stock and performance builds, making it the go-to choice for Nowaskey Performance and Hofmann Designs-style custom baggers that demand dyno-proven performance and made-in-America quality.

Compatible Models Include:

• Touring: Road King, Street Glide, Road Glide, Electra Glide (2006–2007)
• Softail: Fat Boy, Deluxe, Heritage, Slim, Blackline, Cross Bones, Breakout (2006–2017)
• Dyna: Street Bob, Super Glide, Low Rider, Fat Bob, Wide Glide (2006–2017)