the mbc got put on my brother's SR20 car, at first he was hitting really high boost, and i told him he had it the wrong way...he finally figured it out and it holds a good .7-.8 bar now (he needs bigger injectors and MAF sensor to support more since his turbo is upgraded and flows more than the usual T25). he bought a new one at home depot, so if you want yours back, just come pick it up. if not, i might throw it on my car and turn it up just a tad.. i got the front mount on...exhaust is next weekend. my car is holding boost well though, its damn scary at only 7psi