BBK 96-04 Mustang 4.6 GT 78mm Throttle Intake BBK Power Plus Series - CharcoalBBK Performance throttle Intakes are a patented design to be a direct replacement for the restrictive stock factory intake plenum and throttle body. All BBK Power Plus throttle intakes offer OEM drive ability but with up to 30% improved airflow for improved horsepower, torque and throttle response. Every BBK throttle intake is CNC Machined from a new high quality 356 aluminum casting and assembled with features like OEM style die stamped throttle