S14 Sr - Greddy Intake or other manifold required for over 450whp?

[SuicidnS13]

Hey guys on an s14 SR, is a Greddy or other Intake manifold required or recommended for setups of 450whp or more?

[omgRWDgoodness!]

I would think so. I read somewhere that the stock intake manifold can handle up to something like 400-450hp, but don't quote me on this.

[Future240]

I did some google searching and from what I found the stock manifold starts to lean out a bit around 350-400hp, though in some cases people have made 450 on stock manifold. Around that area apparently there might be some torque loss if you get one of the bigger manifolds. Here are the threads I read, perhaps they will be useful to you.
Red Top SR20DET INTAKE MANIFOLD too cheap? - FreshAlloy.com Forums (http://www.freshalloy.com/forums/showthread.php?t=147865)
Top Speed or Greddy Intake manifold for SR: SR20DET Forum (rear-drive): Nissan Forums / Infiniti Forums - NICOclub (http://forums.nicoclub.com/zerothread/241151)

[slider2828]

Why not? I assume you are going to be lagging with a big turbo.... If you can't go greddy go with ISIS..