I posted on Nabisco about this in the 2.0 forum and got mixed reviews.

some of them say it is fine to run a DP WITHOUT EM in my '05 wrx.

then there is a huge discussion about how it is bad to run any performance mod without EM because of the open/closed fueling.

Im confused as hell now

here is the original Thread: http://forums.nasioc.com/forums/show...2&page=1&pp=25