Season 9

A '69 Mustang with a supercharged stroker engine is in need of more throttle response, so the team bolts on a new EFI system.

The girls find a stock AMG E 55 and do some European hot rodding.

An MGB equipped with a Ford Ranger engine isn't running the correct fuel setup.

The crew finally talks a Camaro owner into swapping out his underpowered 305 small block for an overpowered 383 that will make 450hp.

The crew diagnoses and fixes some problems on a Dodge Avenger.

The team brings in a stock supercharged CTS-V and converts it to twin turbos.

This mid-engine classic needs to get back on the road, so the crew goes through the engine to see if it needs a rebuild, then overhauls the fuel delivery system to get this build over some major hurdles.

The team brings back the 442 Tribute car to give it a new LS engine.

Four gears are better than two, so the crew takes the old two-speed Powerglide out of a '67 Chevy Camaro and installs a Muncie four speed.

The new-generation, mid-engine Corvette is here, and the girls take one for a test drive.

The crew gets a chance to help a friend out on her FR-S racecar.

Faye's dream comes true as the girls bring in the new Toyota Supra to bolt on some aftermarket parts and add the perfect-sounding exhaust.

The girls help a Mustang owner with a spinal cord injury finish some interior parts on his classic Mustang.

The girls bring in a brand-new Rocket 3 R to tear down. They get a friend to do an all-new custom paint job.

The girls bring back the 442 Tribute car to do some of the finishing touches.

Bogi and Faye bring in an Alfa Romeo Giulia to show how you can install performance modifications that help the car go faster and even achieve more fuel efficiency.