When you have purchased a Porsche cold air intake for your vehicle, you might want to consider putting on a full Porsche cat back exhaust as well. Porsche Cold air intake system directs more cool air into the combustion chamber, in result, the fuel burns better with colder condensed oxygen. With all these exhaust gases exiting the motor, The exhaust flow is highly restricted by the Porsche catalytic converter and factory Porsche cat back exhaust that created much back-pressure. Installing Porsche performance exhaust system will help to reduce back-pressure dramatically from bigger piping diameter & straighter pipe design. You can find the best Porsche exhaust from our online catalog. Discounted Porsche exhaust systems are now offered with free shipping and way below MSRP.