The Dukes of Hazzard - Season 2 Episode 7 -

Bo and Luke find Cale Yarborough is testing a new secret turbo charger and bring him to Hazzard County to get his car serviced by Cooter. But Boss find out about Cale being in town and frames Bo and Luke for crossing the state line and works with Cale's opponents, The Jethro Brothers to scheme to steal Cale's turbo-charger.