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Stock s4 na exhaust manifold max hp flow with 2.5" back piping ?

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Old 04-16-05, 11:13 AM
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Stock s4 na exhaust manifold max hp flow with 2.5" back piping ?

I was thinking of just using the stock manifold and getting all piping from the manifold flange back , pretty much all straight flowing exhaust with no cat and a 4" tip

streetporting is done on it , functioning 5/6ports using rpm switch, also gonna get an safc

im hoping to get 170whp with this setup is it possible or am i pissing in the wind ?

id rather spend less money and not get the header ( header is 200 bucks f' that)
Old 04-16-05, 03:44 PM
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Bumps get deleted unless it's been like 12 hrs to a day since you posted.

As for your question I think Icemark is making about 170whp with the stock manifold.
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