The team takes a look at two alternate styles of differentials. One is for an upgrade, and the other is for a fix. They also swap spark plugs on a Toyota that seems to have a firing issue.

The team tackles a ram-air conversion on a rare 1970 GTO Judge. They also fix some broken parts on a 1967 Oldsmobile Cutlass. Once the projects are done, they hit the road.

Just because your car's over 10 years old, doesn't mean it has to act like it. Today the girls swap parts on the 2001 Suburban to make it safer and more roadworthy.

The team helps an owner finish his 18-year project that he started when he was in college. The 1979 Chevy Silverado looks great on the outside, but still needs a lot of help with the interior.

The '71 Chevelle gets a new front-runner kit along with all-new wiring under the hood. Then the team pulls the head on a Cavalier and find a host of problems.

The crew begins prototyping some new products on a limited production Audi S6. A V10 super sedan gets new custom exhaust and lowering suspension. It's always fun to be the first to play with new parts.

The team totally guts the interior on a '71 Chevelle to give it an all-new original look. With new seats and new door panels, the Chevelle is going to look as good as did from the factory.

The team fixes a vibration in a 2001 BMW 3 series by replacing motor mounts and control arms bushings. They also get a Toyota 4Runner's AC System running cool again.

The girls combine appearance with performance by giving a 2012 Mustang GT a complete RTR package. They also update a 2002 Ford F250 and make it look and perform like a brand new late model truck.

The team turns fantasy into reality when they turn a 2007 Jeep Wrangler Rubicon into a Black Ops Jeep themed after a military video game.

Jessi and Bogi gave a 1969 Camaro a once over for a friend and determine a lot of work needed to be done to the vehicle. Now, it's time to bill some hours.

The team gets a wrecked 2008 Suzuki Hayabusa back on the road and find out what is causing a rough idle on a 2002 BMW. Jessi gives some solid welding tips as she constructs a new welding table.

It's back to street for a 1971 Chevelle. It was hacked for the track, and now it's the team's job to get it ready to go back on the road. Also, the team diagnoses a barn find for a buddy: a 1969 Z28 Camaro.