so I got my 100 cell metal cat (5" body, 3" inlet / outlet) off ebay for $150 brand new, just wondering if a 3" dump would provide noticeable gains as well, this one :
http://www.justjap.c...&cat=276&page=2
current mods are: full 3" exhaust from turbo back with 3" front pipe (except dump), boost controller at 12psi, FMIC, fuel pump, Nistune, pod in custom box etc.
will the dump provide like only 3-5rwkw?? If so, then not worth it IMO, its a street car with stock turbo, and my goal is response, response, response, trying to get close to the response of the Mines R34 GT-R - that tacho goes up so fast ! !! And yes I know I'm nowhere as close, at least two thirds the response of the Mines car would be schmick!!