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Hi all

Long story short, cracked manifold, need new one.

I was wondering what you blokes think about aftermarket manifolds. I need a manifold that retains the STOCK position. I dont want to have to **** around with anything like exhaust etc. Are there any manifolds that are the log type, low mount and retain the stock possi. Also, where is the best place to source one from.

Thanks in advance

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https://www.sau.com.au/forums/topic/79725-recommendations-on-manifolds/
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HKS makes one - I bought mine from here a while ago and it seems to work OK.

Needed to mod the exhaust heat cover though to fit.

Paid $500 slightly used but OK. Took near 3 months to extract it from the seller after payment though!

There wont be a low-mount manifold that bolts upto the stock exhaust position i would imagine. Could be wrong. Slight mod's would you'd think to the dump etc.

looking at a stock manifold there isnt much of it

this is what UAS are trying to sell. dunno much about manifolds, what does everyone think??

from the UAS site:

UAS STAINLESS EXTRACTORS FOR RB20 & RB25 FACTORY TURBO

SUIT FACTORY TURBO IN FACTORY LOCATION

MADE FROM QUALITY 3MM WALL STAINLESS WITH 10MM STAINLESS FLANGES.

PRICE: $795.00

problem is, the picture they use to accompany the description is identical to the picture they use for their high mount manifold. idiots.

i dont know much, if anything about manifold design, but regarding how some of the primaries merges into one another... thats basically like the stock design isnt it? ie, just all the primaries feeding into a single length of pipe that just has a flange on it for the turbo.

my train of though is that when two primaries meet into a single pipe, the gas velocity increases to make up for lack of volume. wouldnt that be good for reducing lag or something??? im sure theres tonnes more to it than that.

someone educate me :rant:)

but yeah, it does look dodgy.

We used to offer a std position manifold for the RB. They were an ugly thing and an embarassment to sell to be honest. I used to make the buyer aware of the design and layout of these units up front. The workmanship was good but the general design and positions made it near impossible to produce a "pretty" manifold.

We dropped them all together.

I have heard of a manifold out of Brisbane from Sub Zero I think.... We dont deal with them and I understand they are $$$ but any custom fabricated unit will be. Any good fabricated manifold is 17-20 hours labour to produce and that costs $.

Morrie

Horsepowerinabox.com

im running one of those low mount , stock position manifolds. yes they look ugly but they really do work. i gained 15 rwkws at the same boost with my old gcg hi flow turbo . went from 212 rwkws to 227 rwkws and also allowed me to run more boost from 17 psi up to 20 psi , which gave me 240rwkws. hope this helps you make a decision. the best low mount manifold if you can get your hands on it would be a gts-r 6 into one. i think you can get them from r31 house but very pricey.

They are farking ghey! and thats 1 of the cracks ;) the other is in the collecter!

I got both flanges faced before it went on and now it's off after a year the one that bolts to the head is warped to the shitter.Good paper weight if you ask me rofl

One thing you gotta remember though is the price of these manifolds. I have one of these and is yet to crack, I bought it as a pack with a dump pipe also wich cost me a grand total of $400 inc shipping with gaskets bolts etc! I sold the dump pipe for $250 because I already had one so it owes me $150 so who cares if it cracks!! So for the price I dont think you can beat em'

what about the time it takes to to remove and fit the standard one again

what about the hundreds of dollars you spend getting your car tuned just right and then you got to go changing things which do make a diference

i bought it as a seperate item and payed good money for it

they are not suposed to crack

No they are not suppose to crack but neither are the ones you pay $1000+ for but ive seen those crack also. You gotta remember you get what you pay for, I wouldnt pay $1000 for one of these mainfolds hell I wouldnt even pay $500 for one. I bought it cheap and I know its a cheap fairly crappy item but in my opinion its better than the standard oneand will do till I upgrade turbo or have the $1000 to get a full tuned lenght one, that may also crank in the long run anyway.

but hey thats just my 2c

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