[gs-t spyder]

you can get a 1g steel blow off valve but there are 2 that i know of that areeasy to get and a great bov the first one that id recomend is a hks super sequential (if that is how you spell it) and the Greddy Type-S which is a good one to but i have hear of some problems with it but nothing you probably will ever see. i do ot believe in taking a crushed 1g bov first of all when crushing it you just as well ilimenate it because it isnt going to blow off which back spins your turbo breefly whell think about this if you were spinnning in a housing whith just a bushing basicly for a baring unless you have up graded to a bearinged turbo, at about 23,000 rugh RPM then instantly switching directions in .0000001 of a second whuld you want to last long. (I WOULD'T) that is that your bov is there to help elliminate it lets the air out when between shifts what is why between shifts you hear a whoos or wistle.