A Whipple supercharger bolts right on to the top of your 5.7 HEMI and adds a ton of power and torque. Here's how much you can ...

Of course, adding headers, exhaust, chip, air filter, and so on can provide a minor, although a mostly unnoticeable power improvement. The truth of the matter is that the only way to really make any ...

We've seen all the advertisements and heard all the pitches. How these after-market programmers can add 25 horsepower instantly, increase fuel economy and make you better looking. So, we decided to ...