The moment our New Edge GT launched at Auto Club Dragway shortly after we installed this month’s drivetrain mods, we knew it was going to be significantly faster. How could we tell? Because with the ...

The stock S197 auto transmission is praised for its strength in stock form, which is reliable to the mid 500 hp (at the tires) range. We can't say enough about the stock transmission with its ...

The Turbo 350 and 400, along with the C4, 6, and Chrysler's 727 are mainstays of high-performance street and strip transmissions. They have been around for decades, are well supported by the ...

If you're a control freak, late-model electronic transmissions are just what you need to modernize your classic car, and if you decide to go that route, a transmission control module is a must-have.