Harley-Davidson Milwaukee-Eight (2017–Present) Custom Bench Flash Tuning – Continental / Delphi ECU (107 / 114 / 117 Engines)

Our custom bench-flash tuning for the Harley-Davidson Milwaukee-Eight (M8) era brings out the true power and smoothness of the latest generation V-Twin. Using KESS3 bench flashing and WinOLS binary editing, we go far beyond canned “download” maps — giving you complete control over fueling, ignition, throttle response, rev limits, and torque management. The result is stronger torque, cooler engine operation, and improved rideability across every gear.

Key Features

• Engine Coverage – Milwaukee-Eight (M8) V-Twin Engines

  • 107 (1746cc)

  • 114 (1868cc)

  • 117 (1923cc, CVO models)

• Model Coverage

  • Touring (M8, 2017–present) – Street Glide, Road Glide, Road King, Electra Glide

  • Softail (M8, 2018–present) – Fat Bob, Fat Boy, Breakout, Heritage, Street Bob, Low Rider S

  • CVO (Custom Vehicle Operations) – CVO Street Glide, CVO Road Glide, CVO Limited

  • Trike (M8) – Tri Glide Ultra, Freewheeler

• True ECU Bench Flashing – ECU tuned directly via bench with KESS3 for full, unrestricted access

• Custom Calibration via WinOLS – Binary-level tuning for fueling, spark timing, idle stability, throttle sensitivity, torque limits, and rev strategies

• Performance Optimization – Perfect for exhaust upgrades, camshaft kits, intake systems, big bore builds, injectors, and fueling mods

• Safe Performance – Knock-safe ignition, optimized AFR for power and cooling, and factory-like drivability for daily use or long hauls

Benefits

• Stronger low-end torque and faster throttle response

• Cooler running engine under load and while cruising

• Horsepower gains across the RPM band

• Smooth, refined fueling for aftermarket intakes, cams, and exhausts

• Reliable calibrations tailored to your mods and riding style

• Safe power delivery for both stock and performance-modified M8 builds

Compatibility

Custom bench flash tuning available for all Harley-Davidson Milwaukee-Eight models with Continental / Delphi ECU:

• 2017–present Touring (Street Glide, Road Glide, Road King, Electra Glide)

• 2018–present Softail (Fat Bob, Fat Boy, Breakout, Heritage, Street Bob, Low Rider S)

• CVO Models (117 engines – CVO Street Glide, CVO Road Glide, CVO Limited)

• Trike Models (Tri Glide Ultra, Freewheeler)

Process

1. Remove and ship your ECU (Continental/Delphi M8).

2. We perform a complete bench flash with KESS3 tools.

3. A fully custom calibration is built in WinOLS, tuned for your modifications and riding needs.

4. Your ECU is shipped back ready to reinstall and ride.

Professional Assurance

Every Harley-Davidson Milwaukee-Eight tune is written from scratch in WinOLS for maximum precision and reliability. From stock baggers with slip-ons to fully built big-bore Softails with cams and fueling upgrades, our bench flash tuning delivers torque, horsepower, and throttle response that you’ll feel every time you twist the grip.

Meta Description (SEO)

Custom Harley-Davidson Milwaukee-Eight tuning (2017–present, M8 107/114/117). Touring, Softail, CVO, and Trike supported. Unlock torque, horsepower, throttle response, and smooth drivability with KESS3 bench flash + WinOLS.