Quote Originally Posted by Bio248 View Post
no headers bolt up to the stock downpipe. that would be stupid since the downpipe is the most restrictive part of the exhaust.
Quote Originally Posted by bluegtp91
"Installing headers means you don’t have to worry about the Powerlog, U-Bend, or Downpipe. Flow is unmatched by any other exhaust setup"
so which one of you is right?