I have recently purchased a 2006 Mustang GT and would like to upgrade some various air and exhaust parts. Becasue the 2006 is so new, it has proven difficult to find specific parts for this year's model. DO you think that the 2005 cool air filter and exhaust systems would be interchangeable. Specifically, I would like to change out the headers, upgrade the exhaust, and put ina cool air filter. Thanks for your advice.