I just purchased a 2003 GT that has stock headers, stock H-pipe and bolt on 40 series flowmasters. I'm going to stay with the flowmasters, even thought I'm disappointed with the rust on them. I would like to purchase a high flow catted X or H pipe, not sure of Michigan emissions rule so better safe then sorry, also new headers. My problem(s) are I don't know whether to purchase the X or H pipe with the flowmaster and whether to get short or long tube headers. I want to maximize my horsepower and at the same time get a great sound. I have been listening to clips on you tube and read forum posts, frankly my head is spinning. Any help would be appreciated.
Also are the MAC Prochambers catted? Anyone running Pypes "The Beast" system?
Thanks again.
Also are the MAC Prochambers catted? Anyone running Pypes "The Beast" system?
Thanks again.