thats the WHOLE reason y i started this thread. the significant gains. everyone is saying flow. ok yeah sure we all know that but what does that do for hp? and the answer to that is nothing unless you get WAY up there in modding. then maybe you get a little. but theres not a 20 hp difference. and on top of that you have to fight with so much to make it fit. if i can spend 100 bucks here for a dp and 100 bucks here for a plog id rather do that then paying an x amount for headers.
and back to the flow. if it was really neccesary to have headers because it reduced a shi!t load of KR then obviously i wouldnt even consider the plog/dp. but it doesnt even make a huge difference there. so to me in my certain situation all i will need is a plog and dp and i will be good to go with my pulley drop. thanks again guys for all the replies