Stock RB26 tt manifolds or aftermarket?

Discuss the RB20, RB25 and RB26 series engines.
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HxC_Nismo
Posts: 1036
Joined: Sat Sep 23, 2006 10:26 am
Car: '98 Nissan 240SX SE R33 RB26DET
'07 Nissan Titan SE
'05 Toyota Corolla
Location: Missouri
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i picked up a pair of obx twin turbo manifolds and after looking at em it looks like it would cause more exhaust turbulance then my stock cast manifolds. what would you guys recommend for manifolds for my hks gt2530 twin turbos?


gawdzilla
Posts: 2028
Joined: Sat Sep 18, 2004 11:51 am
Car: none

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port match the stockers and you should be good. theres a lot of material you can remove from the manifolds right before the turbine inlet. take a look at the gt2530's opening compared to your stock turbos, then look at the manifold. you can open up close to 1cm wider on the manifolds for the 2530s. the obx's might fit like crap too. if you were putting hks or tomeis on then different story.

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StricNyne
Posts: 3725
Joined: Thu Oct 30, 2003 1:11 pm

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yeah man, OBX is a tad higher qual but i bought some manifolds they the flange bolt/stud holes were off, i had to get a gasket and redo them, i also bought some ss autochrome dumps (ohhh god here it comes, i needed to make custom dumps and it would be cheaper to modify these than to fab up all new ones) and the actualy dump tubes are in the way of the ****ing studs to bolt it on, so i have to heat them up and whack them a few times to even get them to fit , and also they needed to be gasket matched on the flanges, i will never buy bull**** parts again, i just need my car up before i lose my mind and blow it up and sell it, the TOMEI manifolds are insane they are on sale on frpsport.com for like 700 and they even come with exhaust wrap, and they have mouting points for a heat shield, dsport dynoed with their manifold and dumps on a sr a while back and they were impressed


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