“Instantly, that motor kicks in, boosting the native engine’s horsepower and torque by roughly 50 percent and giving me an idea of how Popeye feels after gulping spinach.”

-WIRED

 

“Suddenly, 3.4 liters turns into what feels like 5.0. The difference in thrust is unmistakable.”

-Road & Track

 

“Shadow Drive delivers better than your typical aftermarket power-adder in every way.”

-MotorTrend

Shadow Drive is available for select Porsche models exclusively from Vonnen and Vonnen authorized dealers for $75,000 installed in your vehicle.

For more info or to arrange a test drive today:

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