I'm sure everybody knows about those headers being "offroad use only"... Also, the headers take away the pre-cats, which hasn't been factually proven (not that I know off) as a necessary part to keep emissions down, but most probably is. I noticed how alot of VG33E owners are a little skeptical about emissions when it comes to those headers, mainly due to the lose of the pre-cats. But I got a question for you emission guys out there...

If you used the headers, could you buy a cat that would do the pre-cats job, and the cat's job?

Essentially just running an exhaust system with

- headers
to
- (2)catalytic converter's (one that could act as a pre-cat and normal cat, enabling you to pass emissions)
to
- dual exhaust

I'm sure the power gains would be tremendous, all we need to do (as a community of truck owners) is push some company to produce headers that actually work, and research high-flow catalytic converters that would work with the headers.

I never seem to understand why so little people are willing to bump the hp on the Xterra. We allready have a online website devoted to this truck, we might as well give it our all in every aspect eh?