When the BBK team first introduced the performance throttle body to the aftermarket, it was this 1986-1993 5.0L version back in 1988 when the 5.0L Mustang was quickly becoming the favorite with drag racers and enthusiasts. Fast forward with the hot new 2011-2012 5.0L Mustang reintroduced and these original 1986-1993 and 1994-1995 units are still one of BBK's top sellers with thousands of happy enthusiast over the years. As with all BBK performance throttle bodies, each unit is designed and built right here in the USA ensuring unmatched performance, quality and overall value. When you see some of the other low quality knock offs on the market ask where they are built and you will find out in China and one comparison will make it clear why they might be priced slightly less than BBK units. BBK is serious about building the best product for American vehicles right here in USA and BBK proudly stand behind each and every performance part.