are you doing this on your stock turbo? if so, i don't think it's worth it but to each his own. if you do this you'll also have to get your iwg flapper welded shut, and an uppipe designed to be ran with an ewg; or a turbo with the ewg flange on it(aps) and a tune. you'll need a boost solenoid if you plan on running high boost. why do you want an ewg?