Beefing up your diesel pickup’s factory torque converter with a heavy-duty billet-style improves power, fuel economy and transmission durability — you can bank on it When it comes to towing, the ...

Welcome to the second installment of our project automatic '05 Mustang-dubbed "Project Automatic Weapon." Thanks to longtime Mustang racer Kenny Moss, we've obtained unfettered access to his brand-new ...

We all like to go faster, but the path to lower e.t. 's isn't always through engine upgrades. There's performance to be found in the remainder of the drivetrain as well. Adding a higher-rpm stall ...