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Exhaust

Extractors - People have had good results with Coby extractors, order from www.partsco.com. I use these - they give the engine a much fatter midrange, making the car a lot more fun to drive. They suit both RB20 & 25. Some power gains might be had with the RB25 by using larger diameter piping for the extractors than the Coby extractors (65mm)

Off the extractors 2.5" is the largest diameter piping you should use for RB25DE. Quieten the exhaust with resonators if its too droney.

THAT was in the sticky right up at the top!

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I beleive they are actually smaller than the stock headers but still performe better! (Correct me if im wrong).. These Coby ones are 1 1/2" Primary 1 3/4" Secondary 2" Outlet anyone know the stock dimensions?

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the coby extractors are recomended by anyone here whom knows anything about the RB25DE :P

And if your lucky you will find someone selling a seconhand set or similar - but what your asking about another brand etc i'd say no :(

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i myself have a set of coby extractors.. changed the outlet to a 2 1/2 inch (50mm would be a bit small for an RB25DE), runing a cat and 2 straight through mufflers (not resonators) and although the car is a fair bit louder than stock. it is not droany..

so you would have to get the extractors modified (it does not come with a flange anyhow)

i got mine from advan performance.. cant remember the price. the guy mentioned that HKS make a set of extractors but the cost is going to be more than it is worth..

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thanks for all the info...

i asked partsco about other extractors. thay just got back to me today.

Apparently there are RAGE extractors with primarys of 1 5/8"

i've replied to find out the price...

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ok they replied and the price for the RAGE extractors are $269 +110 or 70 for postage to australia depending if its express or not.

Im not sure if this is nzd or aud. Is there a difference?

Anyone had experience with these extractors anyway?

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I was just thinking that, if they are the same size then I cannot see much difference

with extra power...

Unless they are like titanium (weight reduction?) then again they wudnt be THAT heavy,

as opposed to say a full exhaust

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the cobys are 288...

If people have good comments about the cobys and they cost a bit more, maybe they are the ones to go for after all???

Althought the primaries are 1/8" smaller with the cobys

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what do u mean by 288? the price? maybe we can organize a group buy, this thread seems

to be getting alot of interest... I know I'd be keen for some.

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