Stan...
please confirm you have a 1GGTE 2L twin turbo
if so... the lexus upgrade does not apply
nor the bic dump pipe
there is a 1GFE i believe in some sort of lexus.. whether that uses a 0-5v flapper i doubt but i guess you could find out (that is a v12 tho
)
and with regards to your relief/bypass valve... the 1G doesn't have anything remotely similar to a bov.. they didn't come with one
have you got an engine shot of urs?
also the cooleeze intake pipe wont work on the 1g either unfortunately
let me know if you got pics