legacycentral bbs

heya,

i have an internally standard ej20g out of an auto sedan

now manual and rwd

my current mods r

td05h 16g
hdi fmic
gfb mbc
pod filter
coffee cup mod
sti yellows 440
walbro


my questions are will these heads be a direct replacement for my old heads or will i have to f... around with them a bit to fit


also what kind of performace increase am i likely to get?
y would they be better than my standard heads?
i know they flow better and the lifters etc r different
can anybody give me codes for v2 and v3 wrx and sti just to confirm what i have


Cheers

anyone?

Is your current EJ20G froma Legacy or a Impreza?

If it's from an Impreza the heads should be a straight swap. If it's from a Legacy ther will be C/R details to figure out.

its from a legacy

where do i find this info for the c/r