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Just get one of the Stec manifolds that you have mentioned on here previously. Mine arrived yesterday and is very good quality. I purchased the sidemount one but yet to fit on. All up was $440 delivered.

Edited by mickr33

Sorry for the Hijack, any result feedback on that S-tech manifold?

Price is good, quality SEEMS fine. Im curious as to flow... Would it outflow stock with that runner design or just look cool....

I know a proper one will outflow and make a mean sound.

I will post up results, before and after install dyno results and if there were any problems with install etc.

if its the old one it will not flow past 430 hp atw, im still waiting for the new one that will flow well into 500hp as he has designed it but has no made any for the public.

or i have found a hpi copy made from 321 s/s with 42.7 i.d.....thats why i want to know the i.d of the stock one be for i flow test one as i have a flow test of a stock manifold and i want to compare.

well its abit hard to mesure the oval x section of a cast manifold. what with all the bumps and turns and differant radius's

it starts off as the same exact size as the port then turns away... so by forming a round pipe to the same size as the port is easier. and it just so happens that run of the mill 1.5" stainless pipe is the same. so in mm its about 35mm. 38mm outside minus 1.6mm wall thickness.

cheers.

well its abit hard to mesure the oval x section of a cast manifold. what with all the bumps and turns and differant radius's

it starts off as the same exact size as the port then turns away... so by forming a round pipe to the same size as the port is easier. and it just so happens that run of the mill 1.5" stainless pipe is the same. so in mm its about 35mm. 38mm outside minus 1.6mm wall thickness.

cheers.

legend thanks.

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