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Just want to clarify on what size the turbo flanges are on an RB26DETT and RB25DET

Just got a turbo that was on an RB26 and we are planning to bolt it onto an RB25. But I just want to make sure about what the flange sizes are before getting an adaptor made.

Thanks

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t2 or t28, they are the same, although any turbo off a gtr that you would fit to an rb25 would want to be a big aftermarket one, and wouldn't have a t28 flange. The biggest t28 flange turbo made by garrett is 440hp, a gtr turbo is about 260-280hp if you push it.

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Its a HKS 2530, guy selling said its T2 and I think the RB25's are T3.. But turbo is on its way anyhow, so i guess I'll find out once the Stock RB25 turbo is out, I just wanted to get an adaptor sorted out and the right one!

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thanks for that info!

its for my brothers car, his stock turbo shyt itself.. its his first car so im not really after somethin thats gonna push out a lot of power,i guess we'll see how it goes though.

thanks

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