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  Silva32 said:
Does anyone know if the Rb26 Plenum is a direct fit onto the RB25de head, or does it need an adopter plate of some kind???

Hey dude!

Yes, you are right! You will need an adapter plate. RIPS in New Zealand make them.

Details as follows:

Rotorua Import Pro Shop

35 Maisey Place

Rotorua NZ

07 3490978

e-mail rips@inspire.net.nz

www.ripsltd.com

GOOD LUCK!

  Fitzpatrick Speed Works said:
You will lose power! Its that simple!

Loss of power?

I was thinking about doing a similiar thing so my intercooler piping isn't hanging over the head (should lose close to 1metre of piping).

Any more info on loss of power? (RB25DETwith just over 250rwkws)

Greg

You can run a forward facing plenum thats not a problem just a gtr one will lose you power as the rb20/25 heads dont have the same port angles as the rb26 head and the plenum doesnt suite it and from my experience, reading it done on a rb20 in zoom, and seeing it done on a 25 they both lost power, same with moving the throttle body to the front on a rb25 standard intake they always lose power especially mid range!!!

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