Different FPR's

hammerhead

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Sep 10, 2005
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I know i been having a lot of questions lately.

My question now is, I been looking at some different FPRs, and I noticed some of them noted that they pushed x psi + boost. Others, like the HKS AFPR (the one i want, look at my mods so far in the sig) mentioned nothing of the sort. Can someone explain?