Complete ThunderMax ECM kit with integral auto-tune, wide-band sensors, harness, software and USB cable for easy install and continuous closed-loop tuning.
HARLEY
Subcategories
Plug-and-play ThunderMax ECM kit with integral auto-tune, downloadable maps, live datalogging and easy installation. Made in the USA.
- Complete plug‑in control module kit with wide‑band oxygen sensors and harness.
- Hundreds of downloadable maps; integral self‑tuning adjusts air/fuel in real time.
- Live datalogging and diagnostics; adjustable ignition and startup maps.
Complete engine control module kit with integral auto-tuning and wide-band sensors for easy installation and tuning.
Self-tuning engine control kit with downloadable maps, live datalogging, closed-loop wide-band tuning and simple plug-in installation — improves throttle response and driveability.
Easy-install replacement oxygen sensor for ECM auto‑tune systems. Made in the USA. Some exhausts may require modifications.
Performance fork springs for cartridge kits and front-end upgrades on many motorcycle models.
Performance front fork spring for cartridge kits and a wide range of front forks; suitable for common front-end upgrades.
Engineered for cartridge kits and most major motorcycle front-end upgrades; professional installation recommended.
Upgrade your bike's front suspension with this high-performance Front Fork Spring.
Upgrade your bike's front suspension with this high-performance Front Fork Spring.