Riviera Boost Controller can keep your Buick looking good. Adjust your turbo's power with a Boost Controller. Durable parts keep your Buick going, check out our Riviera Boost Controller. Choose the amount of boost with the Boost Controller for the optimum setup. A new Riviera Boost Controller will last long. A Boost Controller is easily adjusted and easily installed. Make your engine the best it can be with a new Boost Controller.