Quick view Fabspeed Tuning Porsche E3 Cayenne S 2.9L Turbo XperTune Performance Software ★★★★★ (0) $2,196.95 Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). FEATURES: Fits... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List