The Porsche 997 Turbo has the biggest gain out of any car we have seen on the dyno and driving in the real world. The car goes from the stock 480bhp to an incredible 615bhp. We have the dyno sheets to show this awesome wheel horsepower number on our Mustang Dyno here in Arizona (see below). Typical drivetrain loss on our dyno with 91octane is about 20-25%. Equipped with a GMG exhaust system and Fabspeed intake, this 997 Turbo is rippin the streets of San Francisco and the customer says, “The car drives great!” Check out the photo of his ride and his VR Tuned Flash process photos below. Shop all VR Tuned Products Here.