BRA - Nissan Patrol ZD30DDTI/TD42T - BlackTurbosmart's Boost Reference Adapters (BRAs) allow access to a reliable boost reference, without compromising the operation of the car's standard sensors and control systems. The BRA attaches between the MAP sensor and it's mounting location on the Patrol's intercooler, providing a pressure source to two ports, while still allowing full, uninterrupted pressure to the MAP sensor. The two ports allow users to run a wide variety of accessories such as