Highmount Exhaus Manifolds

[croat]

when selecting a highmount exhaust manifold what should be looked at? have just spent the last hour or so searching these forums and cant find much of a comparison between the different types. I have also browsed the net and found:

1) GCG (XTR oerformance manifold) - $1100 made in stainless steel

2) Just Jap (JJR stainless manifold) - 304 grade stainless $550

3)unique auto sports - $1100

4) custom manifold from 6BOOST or any other place such as liverpool exhausts $1500 (made from steam pipe)

what are the pros and cons of each. what have you people used on your cars?

thanks..

[T04GTR]

ok. all the "polished stainless" ones are MADE IN CHINA. so just get one of ebay for 300 bucks. like i did. all the same.

the tube8 ones are very good and worth the extra money.they wont crack and are very well designed.

liverpool dont make them. but for a "decent" quality one id expect to pay 1k-2k. all hand made. they take ages to make. i made one for my dr30 and it took me a good solid 3 days to make from scratch.

[T04GTR]

either get a cheap ebay one . mine hasnt cracked yet *touches wood*

steam pipe is the thing to use.

[SLIMVLT]

6-boost all the way.

full warenty, i beleive its a lifetime warnty.

also he has manifolds on customer cars on here.

they suposably decrease spool time by up to 500 rpm.

there is a great thread going about his manifolds in the advertiser section of calais turbo.

[2BNVS]

6boost manifolds all the way without a doubt!!!

ben...

[r33_racer]

yup 6boost!

[croat]

will check out calais turbo.. how do the other stainless manifolds flow, not the cheap china ones but the local australian made ones. anyone make big power with them?

[Roy]

HKS manifolds are the best that i have seen. They use mandrel sections of pipe with a lot less welds then other aftermarket manifolds.

Anyone have pics of the 6boost manifolds?

[croat]

just been searching over calaisturbo.com.au and have found a new guy that does manifolds. business name is 'extreme turbo manifolds' and his work seems as good a 6boosts. materials and the like are the same. here is a pic of his work.

[wsln33]

Id go a 6boost one for sure. His work and service is second to none. The new guy on calaisturbo selling his manifolds is just copying 6boost ones

[Roy]

Id be inclined to get the thing extrude honed if its welded pipe sections., All credit to him if he has welded them and there isnt weld metal protruding into the airstream