2016 Porsche Cayman GT4

Sporting some choice modifications, this GT4 is up over a hundred horsepower at the wheels without employing forced induction. It gets there with the Dundon D4 Street Power Package, which capitalizes on optimizing pressure waves on the intake and exhaust sides of the motor to allow for the best possible flow. We suspect that a side effect of this is that it probably also makes for a fantastic noise out the back. The GT4 is amazing in stock form, so we can hardly imagine what this one must be like on the backroads.