Quote:
Originally Posted by JB-370z
Because the stock mani. is only rated at 4.5psi, this info comes from stillen which came from Nissan.
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I still don't buy that. If you research the material used to make the factory manifold (manufactured by Dupont) it is also used in plenty of other manufactures forced induction cars.
That isn't to say that there won't be a benefit of an intake manifold change for forced induction cars, but i don't think 4.5 psi is going to cause the stock intake manifold to explode. Otherwise GTM, GReddy, and AAM would all have some issues with their respective turbo kits.