What are the benefits of this swap? I know the evo fpr is designed better, just looking for feedback from people who have done it. And will an evo 8/9 fpr directly fit on a 2g fuel rail? I have an evo X fuel pump installed already and plan on eventually installing 650s with ecuflash.
And a total noob question, how would I know if my stock fpr was being overrun? My a/f ratios are good; not sure if that matters.