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2.5" exhaust ok for big boost?

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Old 09-29-2004, 05:50 PM
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Default 2.5" exhaust ok for big boost?

Hey I am gearing up for a BIG BOOST setup (15-20psi). I want an exhaust that sounds good but also lets my turbo breathe. I know 3" piping is preferred but would 2.5" suffice? Also what would i need to make it sound good and not like a tin can? Huge resonator? Any specific exhuast systems u can recommend like sp2 or somehting. I like the sound of the WS but that blows for turbo...

PLs Help!
Old 09-29-2004, 06:13 PM
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Default Re: 2.5" exhaust ok for big boost? (turbotime)

You will be ok. On an old setup I made 322 whp (i forget tq #'s) on 10psi boost and going through 2.25" apexi exhaust. Of course the bigger the better in this case, but you should be ok.
Old 09-29-2004, 08:13 PM
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Default Re: 2.5" exhaust ok for big boost? (turbotime)

ok so how would i ake it sound deep and not like a tin can (aka most hondas)
Old 09-29-2004, 08:27 PM
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Default Re: 2.5" exhaust ok for big boost? (turbotime)

The turbo acts like a muffler ne-way so even without a resonator it still, in most cases sound deep.
Old 09-29-2004, 08:31 PM
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Default Re: 2.5" exhaust ok for big boost? (808b18c1boosted)

2.5" piping from Kteller, a turbo style muffer and maybe a 3" DP and 3" cat would sound nice on most hondas. Pretty deep note.
Old 09-29-2004, 09:14 PM
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Default Re: 2.5" exhaust ok for big boost? (Bailhatch)

"The best exhaust for turbos is no exhaust" -Corkey Bell. If you dont want the sound, just keep what you got and use an exhaust cutout. What I'd like to do.
Old 09-29-2004, 09:16 PM
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Default Re: 2.5" exhaust ok for big boost? (LilManSi)

ive seen mid 400's on a greddy evo exhaust which is like 2.3 inchs i think
Old 09-29-2004, 11:09 PM
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Default Re: 2.5" exhaust ok for big boost? (Mase)

isnt a large dp to smaller exhaust counter-productive?
Old 10-02-2004, 11:21 AM
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do you think the greddy sp2 would work?
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