im right about ready to do exhasut, its will be completely full. i was wondering if the rsm ported intake manifold and throttle body are enough of a reason to go with 2.5 inch pipes instead of 2.25? if anyone has any coments or suguestino id like to hear from ya, thanks.

the rsm ported intake manifold is nothing you cant do. all they do is dremel a lip off of where teh tb connects to the IM. you can do it your self in a few minutes. dont spend 200 for them to do it.

are you going forced induction? if so, then you want 2.5 or larger. if not, then you want no more than 2.25


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so is even doin the dremal work worth anythnig? or would i be better off jsut worrying about throttle body size?

TB size will give you the most improvement, so i would concentrate on that. But, dont go overboard, 59mm is probably the biggest you want to go unless you boost than 62mm would be more appropriate. If you get a TB you will probably have to bore out the inlet a little to clear the throttle blade.