The Model B5 controller is not yet available ... we expect to announce availability in July or August 2018.
Functionally, it is identical to the Model E1. It is a 2-way exhaust controller that is designed for installation in extreme environments as one would encounter in the engine bay of high performance sports cars. This controller is compatible with any motor car that can use the Model E1, but is specifically fabricated for extreme environments. The Corvette C7 and Camaro Generation 6 are two examples where the controller module is typically installed in the engine bay where temperatures can exceed 85° C (185° F).
The Model B5 provides two modes — both modes can be selected using the included remote transmitter or a manual On/Off switch.