i have alot of boost stack. with my 3.25 i have 13.5-14lbs max. which as it seems by reading around is high for 1.9 rockers. my goal is to dip into 12.9 which is very close a few tenths. i want to free up my manifolds but don't want to spend another grand just to get a few more tenths. i was looking at the s&s headers but it seems that only gt's have them. but i figure they have got to be better then ported manifolds and manifolds claim to drop 2 tenths. would s&s headers work well on a gtp or are they going to still restrict severly. oh yeah and when zzp comes out with the boost controller i plan on using that to push a little more boost out. but my goal is only to drop 3-5 tenths should i save for the expensive stuff or will s&s work.