MMR is a top leash electronics dealer and keeps most controllers in stock for immediate shipment!
MMR / Leash Transbrake Bump Box Stage your turbo car like the pro's with this digital Transbrake control box. Fully adjustable with LCD readout for simple + or - adjustments. Turbo cars simply light the first staging Bulb and press the trans brake button, the car will spool quicker than footbrake applications due to higher load on the engine. Once the engine has reached the 2 step setting in your ECU or MSD simply press the bump button and a controlled pulse will be sent to the transbrake for perfect, fast staging every time! This same system is used by Team MMR and many NHRA Pro Mod teams.