so that was the single ballbearing upgrade that you got done ? it looks like my 57trim t3/t04e (.63 a/r exhaust and .50 compressor housings) is going to take about 4krpms to get fully spooled using my zetec (2.0L) id like to get full boost around 3500ish rpms , you think if i ran it open downpipe that it would help spool times ? iam looking to atleast make 3-4psi by 3000 - 3400rpms (at the very least)