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I know a car making 360rwkw through a standard RB25DE manifold..

Couple of questions

If he changed it wouldnt u instantly get more power?

Is there much of a difference between the genuine greddy ones and these cheaper copies?

I have a rb25 with hks 2535 pumping out 240rwkw, if i change to a greddy one should i be expecting much of a gain? id be happy with less lag + same power

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Couple of questions

If he changed it wouldnt u instantly get more power?

Is there much of a difference between the genuine greddy ones and these cheaper copies?

I have a rb25 with hks 2535 pumping out 240rwkw, if i change to a greddy one should i be expecting much of a gain? id be happy with less lag + same power

Forgot to mention it's also through the stock throttle body. In his situation, the plenum is the bottleneck so changing to a better flowing manifold/bigger throttle body would probably result in a big increase of power straight away. He decided to start again with a new engine as this one was getting out of hand, you can't buy off the shelf plenums for RB25DE's that we have found.

But if you aren't AT the bottleneck yet, I don't see any significant gains other than being a bit more free in the top end.

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