For the record, this is for my 98 Frontier, which is a 4 cyl. I know this is an "Xterra Only" board, and I do own an 01 X, but this is also the only board with a "Manufacturer Row" which manufacturers actually check and respond to once in a while.

I have looked at doing a turbo, since a turbo manifold is made for this engine that will fit any T-series turbo. I do want to do it right, if I do it at all, and last I checked it was pretty expensive to get a race shop to properly tune it, plus the cost of an intercooler, larger injectors, yada yada yada...

Anyway, I think right now that the cam and rocker arms would fit more into my budget than a turbo. But the next time I see this manifold on eBay (passed that up a year ago, doh!) it's mine.