When you have purchased a Isuzu cold air intake for your vehicle, you might want to consider putting on a full Isuzu cat back exhaust as well. Isuzu 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 Isuzu catalytic converter and factory Isuzu cat back exhaust that created much back-pressure. Installing Isuzu performance exhaust system will help to reduce back-pressure dramatically from bigger piping diameter & straighter pipe design. You can find the best Isuzu exhaust from our online catalog. Discounted Isuzu exhaust systems are now offered with free shipping and way below MSRP.