Porsche Cayenne Turbo 4.5L V8 04-06 VRTuned.com August 19, 2009 Product Info Porsche Cayenne Turbo 4.5L V8 The Porsche Cayenne Turbo has a powerful 4.5L V8 engine. Stock, the car makes 450hp to the crank. But when you are in a Cayenne Turbo, it is like being in a 911. The turbos...