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.
Fiberglass-wrapped, non-removable 2.25" baffles; engineered for Softail fitments; made in the U.S.A.
- 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.
Stepped headers into a reverse-cone megaphone, removable spiral-core louvered baffle, mounting hardware and heat shields included. Made in the U.S.A.
Stepped headers merge into a reverse-cone megaphone; removable spiral-core louvered baffle, mounting hardware and heat shields included.
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.
Stepped headers merge into a reverse-cone megaphone muffler with a removable spiral-core louvered baffle. Heat shields and mounting hardware included.
Performance-oriented full exhaust system offering stepped headers, slotted heat shields and a direct bolt-on design. May not fit with passenger footpegs.
Classic fishtail dual exhaust delivering distinctive sound and improved performance. Includes 1-3/4" head pipes and heat shields.
Easy-install replacement oxygen sensor for ECM auto‑tune systems. Made in the USA. Some exhausts may require modifications.
2-into-1 equal-length headers, upswept megaphone muffler, 18 mm O2 ports. Fits mid-controls 1991–2017 and forward controls 2007–2017.