Z1 Black Friday Puzzler

josh@z1

Z1 headers are the momentum Headers only we changed the head flange for the logo and a more economical cut which allows us to bring them at a lower cost to you guys than Momentum ever could. They are still made by the same manufacturer that built the others and it is obvious the quality is equal. All comparisons we have done between the Momentum headers and the Z1 Headers have yielded identical results however our modified plenum has yielded much better results than any of the other plenums available for the VQ37VHR. The 400hp package is just that. We have made and continue to make ~340rwhp with this setup (with other supporting mods) which, accounting for a 15% drivetrain loss, equals 400 crank hp.

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LostSol

Can you explain how your manifold is different than stock since it's 'modified stock'

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josh@z1

We have spent considerable amounts of time testing and perfecting the modification so I can't just explain everything we do but I can tell you that we have modified these to either end of the spectrum and are offering the modification that nets the most power. Many plenums have seen their end while we were perfecting this modification. We consider our modification service to be the most powerful, economica,l and safest (for your plenum) plenum modification available.

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