BBK Performance Parts - 1996-2004 Ford Mustang GT - 78mm Throttle Intake Another Design and Patented Performance first from BBK Performance – This all new BBK 78mm throttle intake incorporates a high flow intake plenum and a larger 78mm BBK throttle body all in one great performing unit. Add 10-15 RWHP & 10-15 RWTQ with this direct bolt-on. This patent pending design has all the quality features you would expect from a BBK product - built from lightweight 356 aluminum castings this kit comes complete with all the necessary hardware ...and horsepower!