For Porsche drivers looking to eliminate the rear muffler, but not willing to accept the slight loss of power an X-Pipe creates. AWE Cross Over Pipes are designed for enthusiasts looking to improve the power of their car, while reducing weight, and also waking up the tone of the car. Cross Over Pipes are an affordable and simple-to-install modification. With the OE rear center muffler, entering exhaust gas is forced into a tight radius u-turn before exiting from the same side of the muffler. This turn hurts exhaust flow and power. AWE 997.2 Cross Over Pipes are designed to completely eliminate the center rear muffler from the exhaust flow equation, providing the smoothest and straightest path possible for the exhaust gas. AWE Cross Over Pipes provide gains of 5 horsepower and 5 lb ft of torque at the crank, and a weight savings of 6.5lbs compared to the OE center muffler.AWE exhaust systems are handbuilt works of art, are award winning, and are what your Porsche deserves.