Custom manifold/plenum/TBs

phunk

The AMS GTR Manifold is not just somewhat like the OEM manifold... it IS the OEM manifold. They cut out some of the runner length and weld in a new floor lower down spaced further from the original plenum lids, creating shorter runners and larger plenums... which is pretty much exactly what you would want for that car. This is why there is a $1200 core charge on top of the $3200 price. This of course makes a lot more sense for a GT-R owner who stands to pick up tons of power. But a NA Z isnt going to get much HP per dollar from an intake manifold without increasing the revs. *Maybe* 10hp if you hit a home run. How much is 5-10hp worth to most NA Z owners?

I honestly believe that most the community here want one for appearance more than anything. The stock one is just so hideous. There are very minimal HP gains to be found in an intake manifold for an all-motor 370z that is going to be running stock oil pump / redline IMHO. That is why nobody has really put the effort in yet... the payoff will be pretty slim.

If HP is what you are looking for... unless you are going to make some serious changes to the engine, I think the intake manifold is the wrong place to be looking.

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