Quote Originally Posted by Bio248 View Post
anyone that tells you that you need headers to run smaller supercharger pulleys has never even attempted to without headers and is just regurgitating information they read once upon a time.
From what I understand, you can run a 3.6" with DP, CAI, and colder spark plugs. 3.5" or 3.4" with all of that plus headers. A tune is necessary before going smaller at all