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Thinking of changing the standard exhaust manifold on my R33 gtst. Im making 250rwkw, hoping to get it flowing a little better. What is the nest way to go? i have the following options in my mind:

1) get a stainless steel one off ebay or the like for around $400...(im worried if they are dodgy and will crack and not sure if they are tuned lenght)??

2) liverpool exhausts quoted me $1200 to get one custom done + fitted then ill HPC coat it.. thats tuned length..

3) HKS one or the like,

by the way this is for a low mount turbo in stock position...

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hey croat,

stay away from the cheap ebay/chinacopy stuff. you will have way to many problems with it not fitting correctly and the very high possable of it cracking in the near future.

option 2/3 are you best bet. if you can find something like a low-mount cast-iron HKS manifold, buy it as its one of the best lowmount manifold around for an rb20/25 (only problem is that it is to suit an ext gate)

$1200 is alot of money, and im guesing you could get a hks/trust/apexi one for around the same price but mostly it will be high-mount and to suit an ext gate.

Ask the exhuast shop how much for the manifold, without fitting as it is a very easy job, and im sure you could pull it off yourself (if u got the tools and abit of time) which may save you a few dollars.

Good luck and just remember you get what you pay for so stay away from the cheap crap :blink:

hope that helps

cheers mikey :)

We are up to 265 rwkw with the standard exhaust manifold on the R34GTT. If you are looking for less than 300 rwkw, personally I would have a go at power porting the standard manifold.

Abrasive Flow Enginering at St Marys did some others that I liked the look of, defiitely worth a try.

:( cheers :(

Maybe also check out this guy out, cost around the $1000 mark.

I've only heard good things so far, so he must be doing something right.

http://www.calaisturbo.com.au/showthread.php?t=50987

Some pics for those who couldn't be bothered opening up the other thread:

post-2292-1129180400.jpg

post-2292-1129180436.jpg

post-2292-1129180468.jpg

post-2292-1129180492.jpg

From all reports I believe the 6boost stuff is up there quality wise and probably performance wise with the Jap stuff. But you are better off to get in touch with 6boost himself and make your own mind up.

Unless you are specifically after a brand name and the bragging rights that go with it, I don't see why you wouldn't consider a good local product.

His collector design certainly appear to be unique.

Edited by browny

http://forum.r31skylineclub.com/index.php?topic=27815.15

Have a look halfway down that thread for a pic of the R31GTSR factory manifold.

Might be able to still get it through Nissan and if so should be able to get the factory heatsheild as well for a stock appearance.

Edited by FATGTS-R

too f..ken much!!!!

here is my recent purchase for my build up.. overkill for my goals.. but hell they are sex all over!

i probably paid a bit too much for em .. even with the HPC coat.. but finding them alone.. and for sale was enough.

http://outlawconnection.com/angryaussie/sig/r31/P4030009.jpg

is it an ex GTSr fred gibson motorsport one. apparently..... they flowed the same as the standard manifold.. but in split pulse to help spool up. pretty much the same idea as the GTSR. gains of around 25rwkw was typical, bolt on.

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