| I have an RB25 as well (going into my S30) and I'm about to go through this same process. I plan to remove the hump on the exhaust ports but leave the quench pads in place. If you haven't yet purchased your turbo or the manifold and wastegates, you might want to consider the new Borg Warner EFR line. I think Don (AliaZ) has posted a few times regarding the potential applications they have for the VG engine, but I'm considering using either their model 7064 or 7670 for my RB buildup. http://www.full-race.com/articles/borgwarner-efr-turbos.html Anyhow, the progress so far looks good, keep us updated!
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