Banks Power 01-04 Chevy 6.6L w/Stock Exhaust Banks BrakeComputer controlled exhaust brake safely cuts downhill speeds up to 52% without use of wheel brakes. It's better because it's Banks. Banks Brake is designed and tested by engineers to provide strong, safe and sustained braking power. If your truck hauls loads and navigates hills, don't settle for less. Some designs bypass so much exhaust flow that they provide little or no additional braking. Others restrict exhaust flow when not in use, impeding