"Legislation (H.B. 1330) that would effectively prohibit the use of exhaust systems other than a “factory-installed muffler” or a “muffler meeting factory specifications” has been reintroduced in the Pennsylvania State House of Representatives by Representative Michael K. Hanna (Phone: 717/772-2283, Fax: 717/787-4137). The bill has been referred to the House Transportation Committee. "

http://www.semasan.com/main/main.aspx?id=61559

does this mean i cannot buy a catback for my car? will car pass inspection and emisions?