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Hey all,

I am trying to find an aftermarket exhaust manifold for RB20/25's. It needs to be suitable for the stock turbo i.e. no high mount or external waste gate manifolds.

There are many on the market such as the Xforce or the HPI manifolds that would be suitable however apparently these dont flow as well as stock items. These products are a combination daisy chain and tubular arangment. I am looking for 6 seperate pipes joining to 1 as apposed to the modle shown below.

rb25stainlessman.jpg

600x401-2006063000093.jpg

600x401-2006063000094.jpg

Thanks

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https://www.sau.com.au/forums/topic/125641-rb2025-aftermarket-exhaust-manifold/
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not really in the stock position but how about a gts-r manifold? have seen a few pop up on the yahoo auctions for ~40000 yen. use slidewayz or a jdmimports etc to find one.. or try get your hands on a cast hks low mount manifold.

  • 8 months later...

I too also need a aftermarket manifold to suit the standard position as my turbo is also a hks gt2835pros in kit form. I have spoken to kylie at 6boost and he has said it is impossible to make up one with any decent runner or collector design. The standard postion is 3'' from the head face and points towards the block...And his has suggested that i shudn't even bother as it would be no better then stock! So what are my options them? honed the standard one? xforce???

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