The Agency Power Exhaust System is THE exhaust for your Porsche 997 Turbo. This exhaust gives up to 20HP with its hi-flow cats while keeping a mild tone inside the car at cruising speeds. Its all stainless steel design allows it to save about 30lbs of weight off the rear end of the vehicle.  So enjoy our new video we just released. See more on this and other exhausts at www.agencypower.com.