BBK throttle bodies power some of the hottest Mustangs on the street. They're also used as some of the many "factory" performance-enhancing parts on Roush Stage III Mustangs. If Jack Roush gives BBK ...
BBK has a 70mm throttle body for the 3.8 V-6 for $279.99, so on it went. The larger throttle body requires a slight enlargement of the upper intake manifold inlet, which can be done with a round file, ...