wondering how to up the boost with out the fuel cut defender kicking in , i would like to keep it there but just raise boost ...

Buy a hks fcd. It splices into the map sensor wires before the ecu to adjust the signal.

sweet and i can adjust as needed?

It will be expensive to buy a HKS one, you can get a cheaper one here:
http://www.twosrus.com/catalog/product_info.php?products_id=283
If you don't have a boost gauge or boost controller you could get their package
http://www.twosrus.com/ca...05&products_id=385
 
or even build your own FCD if you have a soldering iron it's pretty easy and cost me about $10 in bits from Jay Car.
http://toymr2.tripod.com/fcd.html

thanks bud, looks like a good site to blow some hard earned..

I've been doing a bit more reading and thought I'd ask seens though i can't find any info here....

I've read that a fella got the FCD installed but then later had an apex'i safcII installed ..
Does anyone know anything about these air flow controllers in an mr2 ( being a piggy back )
Should I buy one of these apex'i devices , it looks easier to adjust the FCD ?.

Do not get an safc, they dont work well with 3sgte ecus.

Alright I'll stick with the simple FCD thanks mate