No, that would be too nice an excuse.

Seriously, you cannot give one justifiable excuse to fit an atmo bov.

__________________
I am only an asshole on the internet :)

[SIGPIC][/SIGPIC]

Don't worry, i had one when i first got my car too so I'm speaking from experience.

I am running a Jap three plug V3 sti ecu & have a v3 power fc 3 plug

I would not say my shitter is slow with a v3 ecu fitted. as others have stated above the V3 stock ecu is very good & you will be hard pressed to better it.
The ecu is on the passengers side floor & under a plate. You need the numbers from the case to see what you have. as many subarus have had parts swapped you need to confirm what you have fitted.

As has been said, STI ecu is the way to go. Mine has a 3" hks tbe and although I have yet to "drive" it, when I got it started for the first time in over 2 years it started easy and idled smooth.
As for the bov, it's a personal preferance. Mine has an atmo bov and I will be removing it. My last car had one on the motor when I put it in and other than making noise, all it did was make me use a bunch more fuel.

What Seagull said, stock V3 STI ECU with those mods will see a high 12 and great fuel economy, on a country run not taking it easy I got 732kl from mine before re filling with a bit less than 3L left in the tank, seriously good ECU and no dyno costs every time you do a minor mod.

Also the stock BOV sounds good through the standard air box with a cheap home made in guard CAI.

__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

Sounds like stock is the way to go then
Seagull- the way I read that, is your running the stock ECU with a power fc (is that a piggy-back setup?)
Just as long as I don't upset the car by running better TMIC(process west or 04 STi), intake(probably a Perrin setup) & the wanky bov...with the stock ECU


sorry mate, my nooby ignorance means I have no idea what that is ):

edit: i now realise CAI = cold air intake

still don't know what a "cheap home made in guard cold air intake" is though...

You will upset it by running stupid bov

tmic no
cai no

__________________
I am only an asshole on the internet :)

[SIGPIC][/SIGPIC]

DAMMIT, I just want to be cool

i chucked CAI into search, but nothing on what the cheap home made guard's are??

also is mafless worth doing?

Mafless requires something like autronics afaik.