Chevy Silverado HD and GMC Sierra HD owners who want more performance from their gasoline-powered pickup can turn to Whipple and its new supercharger upgrade for the GM 6.6L V8 L8T engine.

The 3.0-liter Whipple supercharger stuffs enough air into ... in the bed of your F-150 for $12,300 before taxes. Tires and installation will obviously set you back some extra cash, especially ...