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HKS RB25DET Stainless Manifolds

SXN180

By SXN180,
in Engines & Forced Induction

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SXN180 Enthusiast

SXN180

Posted
Posted

Hi All,

Does anybody know how to order the HKS Style Stainless RB25DET manifolds from www.manifolds.cn ?

$150USD for a stainless manifold seems to good to be true but I have heard that people have bought these before and are having no problems with them.

I have left them numerous anounts of emails but never get any replies.

I have just found out that my standard manifold has a nice big crack in it.

Or is there anyone else that has reasonably prices Stainless Manifolds for sale.

Any help would be much appreciated

Cheers

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https://www.sau.com.au/forums/topic/53511-hks-rb25det-stainless-manifolds/
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proengines Rising Star

proengines

Posted
Posted

I've heard all sorts of bad things about these manifolds but then I had a customer buy one of the SR20 manifolds a couple of weeks ago and it definitely looked the part. Welding was beautiful and all the ports were hand blended.

I had to grind one bolt boss off the head to clear #3 pipe and the factory cast dump pipe interferes slightly on the bellhousing requiring a little grinding, would probably be no problem with a dump pipe they also sell for US$30 or so from what I can remember.

The flange plates are mild steel but the pipes are not magnetic. One pipe comes into the collector at almost 90deg to the turbo flange but I suppose this is a compromise for space, still, I'd say it would have to flow better than the standard cast manifold and for the price of one you couldnt buy the flange plates and bends to make your own from steam pipe.

Some people seem to be worried about the manifolds cracking eventualy, but really for that price, buy 2 and keep a spare for when it does!

I haven't seen an RB25 manifold but if it's similarly made I'd be happy to use one for the price they are on my own car, maybe not for a customers where I'd be up for the cost of replacing it if it did crack.

It's like most things, Quality costs and you cant expect a $250 manifold to last as long as a $2000 one!

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