What's the difference between the Formula (expensive one) and Genuine (cheaper one) kits for the SR20DET? autoimaging said that the formula kit used a bigger turbo that was useless for street driving... I just spent some time on google and found that most sites say both kits use the K3T. I found one site that said the formula kit has a stainless steel tubular manifold, whereas the genuine kit uses a cast manifold... that would make sense, but that was just one site. So can anyone confirm or deny anything I've heard?
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