Rb25det Exhaust Manifold (which One?)

[tom200]

I'm currently taking my s13 rb25 to 500ish hp and have run into a brick wall.

I had bought a tubular manifold with t3 flange off ebay. But then my turbo choice changed (gt3076r with t28 flange).

I got myself a flange adaptor plate to go from t3 to t28, but it seems the manifold is a pile of crap and the flange is more like T3ish.... serves me right its the only part I skimped on.....

I am wanting to buy another manifold now, but rather than go t3 and use this adaptor, I was wandering if anyone knew of a half decent rb25 manifold with a t28 flange on it?

I'm using internal WG but if the manifold is for exturnal I can block it off so this is not a huge problem.

Any help would be great as I now have a car with a head, no cams, no plenum and no sign of a fitting manifold.

thanks is advance

Tom

[BezerkR32]

Dont know of anything aftermarket with t28 flange and internally gated, might be looking at a custom one, should only cost you $900. Modifying flange on something like a XtR manifold would end up costing you the same.

I'm currently taking my s13 rb25 to 500ish hp and have run into a brick wall.

I had bought a tubular manifold with t3 flange off ebay. But then my turbo choice changed (gt3076r with t28 flange).

I got myself a flange adaptor plate to go from t3 to t28, but it seems the manifold is a pile of crap and the flange is more like T3ish.... serves me right its the only part I skimped on.....

I am wanting to buy another manifold now, but rather than go t3 and use this adaptor, I was wandering if anyone knew of a half decent rb25 manifold with a t28 flange on it?

I'm using internal WG but if the manifold is for exturnal I can block it off so this is not a huge problem.

Any help would be great as I now have a car with a head, no cams, no plenum and no sign of a fitting manifold.

thanks is advance

Tom

[DoughBoy]

HKS make a stainless highmount T25/28 flange manifold for RB20/25. External wastegate though.

[StockyMcStock]

6BOOST will make you one - for a price. If you're in Brisbane i'm happy to make you one for a lot cheaper.