Banks Power 06-07 Chevy 6.6L LLY-LBZ Banks Speedbrake (w/ iDash 1.8 DataMonster)The World's First All Electronic Braking System. A revolutionary approach to exhaust braking, Banks patented new SpeedBrake does what no brake has done before. The world's first all electronic braking system, SpeedBrake achieves maximum braking power by intelligently modulating systems already found on the truck. SpeedBrake manipulates the variable geometry turbine vanes in concert with deliberate gear selection and torque converter clutch application