Get the total control you always dreamed of with a BD TapShifter. Kit includes a factory looking shift lever that gives you gear control at your fingertips. Great for passing, pulling, hill climbing or whenever you need to change gears quickly. Limit transmission gear hunting and access all five gears; limit upshifts and better control downshifts. Straightforward install and operation. Built in electronic exhaust brake control delivers up to 70psi backpressure utilizing factory variable geometry turbocharger as an exhaust brake for added retarding force.