HARLEY
Subcategories
Complete ThunderMax ECM kit with integral auto-tune, wide-band sensors, harness, software and USB cable for easy install and continuous closed-loop tuning.
Rear Turn Signal Brackets available in chrome or black nickel finish, designed as direct OEM replacements.
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.
Bullet-style LED turn signal with sealed dual-function circuitry, 100,000-hour bulbs, and 42" wiring; may require a load equalizer.
Sealed dual-function LED turn signals with long-life bulbs and 42" wiring. May require a load equalizer.
Direct OEM replacement brackets designed for factory fit and alignment. Durable construction for reliable service.
Loud, deep-toned two-terminal horn, approximately 100 dB.
Loud, deep-toned two-terminal horn — 100 dB, compact design for easy installation.
Chrome billet speedometer sensor with OEM Deutsch connector. Made in the USA.
Three-function red LED light bar for rear mounting. Polycarbonate base and 55" wire lead for flexible installation.