Welcome to the new generation of exhaust valve controller built by Valvetronic Designs for the Audi R8 and Lamborghini gallardo. This controller is incredibly easy to install and its 100% plug and play. When this controller is installed you have full control over the factory exhaust valves. If you have an aftermarket exhaust system that retains the factory exhaust valve controller you will be able to control those exhaust valves as well. This controller overrides all factory valve function for 100% control over the valve and maximum sound change with the two modes being 100% valves open or 100% valves closed.
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