Porsche Cayenne GTS 3.6L Turbo Tuning Box Installed VRTuned.com June 9, 2016 Product Info, Tuning Tech The new Porsche Cayenne S and GTS no longer have the long used 4.8L V8, but now a 3.6L twin turbo similar to the Macan Turbo. Manufacturers are going to smaller displacement engines with turbochargers fitted...