Discovery Turbo

After an unfinished list shakeup, Ryan and Chief finally line up to race off for number one. With the list complete, the 405 gets ready for their first exciting list race of the season.

The 256 takes a racer who is losing and tries to turn him into a success at a big event.

Four up-and-coming racers from Southern California compete in identical go-karts.

Two insanely powerful drag-racing motorcycles swap their drag slicks for mud tires.

The restoration of a rare Japanese icon is a chance for Drew to pay homage to one of his automotive heroes. However, work stalls when Paul struggles to find essential parts he needs.

Car dealer Mike Brewer snatches up a 1973 Ford Mustang Mach 1. Can mechanic Ant Anstead bring back the lost power by tuning up and enhancing the engine?

Fred and Dave decide to build a budget bouncer from a Dodge truck with a V-10 engine, calling it the Rock Viper.

Bogi and Faye go back to their roots and tear down an old engine that Faye had lying around.

The drivers rush to make repairs to get ready to race. Also, Farmtruck and AZN head out of town.

Brant Arnold recruits his 256 teammates to help rebuild a local legend's dilapidated '89 Camaro, and hopes to uncover some of his race-winning secrets in the process.

Anthony Big Worm Smith and Artis Houston face off in a classic Southern California grudge race.

Four up-and-coming racers from Southern California compete in identical go-karts.

A classic Fiat 124 Spider race car offers the boys the chance to be able to fulfil their heritage racing dreams. However, it's a tight fit and Drew despises its green colour scheme.

Mike Brewer and Ant Anstead try to arouse the passion of the Saab enthusiast community by restoring a rusty, non-driving 1973 Saab 96 to its past glory.

Fred and Dave head south to experience the mud holes at Okeechobee. First, the dirt heads must track down a big Dodge diesel mud truck on 65-inch tractor tyres, which they want fix up.