Extractors for a Blown RB25

[PHaT MR30]

kinda a weird question to be asking

but where would i look to for Extractors to suit a Supercharged RB25DET (note no turbo is involved).

and what size exhaust would be involved? particularly for a 250+rwkw motor?

i already got a 3" cat back, but a std dump/front and cat.

but i was thinking a 2 1/2" would be more suitable to allow some back pressure.

and do RB30 extractors fit RB25s? or are the different stud pattern?

[meggala]

rb 20 extractors fit not rb 30 you need to chaser around some wreckers If you need an image of some I might have one

cheers

[PHaT MR30]

thanks megz, i am not sure if you mean std or aftermarket. in that case what about RB25DE's?

would be looking for something tuned length like a pacemaker style, probably willing to spend up to $500 if need be.

[meggala]

yeah rb20 or 25 de's are the go to get the thing running you can run stock exhaust mani and they wont be dear. a crowd in nz make extractor but you might get some made up fairly cheap as well

cheers

[redline2003]

can i just ask why is it almost mandatory to use stock extractors on a supercharged car??

[PHaT MR30]

its not, but anything will do for a starting point, if i can't find some good off the shelf ones till i can afford to get a nice custom set made

std manifolds aren't too bad