55478 Banks SpeedBrake Requires iDash 1.8 (not included)

All-electronic bake cuts downhill speed up to 78%
The World's First All-Electronic Braking System. Cuts downhill speed up to 78 percent. All automatic, user selectable speed. Simple plug-n-play installation, no cutting or welding required. Extends the service life of your brakes, and does so while maintaining your sanity.

Requires Banks iDash 1.8 DataMonster or Super Gauge (not included). To use without iDash, see Banks Brake #55469