Acura RSX DC5 & Honda Civic EP3 Includes DC5 Integra Type R & 5dr Civic hatchback

exhaust noise questions?

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Old May 11, 2004 | 10:01 PM
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Default exhaust noise questions?

Ok if I bought a race header and then got custom 2.5'' piping that went to the stock axle back. Would this be loud or still sound like stock?
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Old May 12, 2004 | 01:29 AM
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Default Re: exhaust noise questions? (dacaveman)

Why would you do that? I'd be a little louder than stock but with the small piping on the muffler and the chambered design, I doubt if there'd be any performance gains.
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Old May 12, 2004 | 04:05 AM
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Default Re: exhaust noise questions? (mister x)

It's gonna be loud as hell with a race header at 8000 rpm's.
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Old May 12, 2004 | 05:24 AM
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just get the hyper medallion or world sport if you want quiet. They are 2.36 inch catbacks though so that might be a problem.
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Old May 12, 2004 | 09:41 PM
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Well I am going to get a Spoon n-1 axle back eventually. But till then I was going to run stock axle back. Just wondering if it was going to be loud though.
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Old May 13, 2004 | 12:51 AM
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It'll be annoyingly loud unless you get a resonator welded somewhere on the b-pipe.
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Old May 13, 2004 | 01:29 AM
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Default Re: (MyCarGoesVroom)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MyCarGoesVroom &raquo;</TD></TR><TR><TD CLASS="quote">It'll be annoyingly loud unless you get a resonator welded somewhere on the b-pipe. </TD></TR></TABLE>

Definately with the Spoon N1. I tried a Tanabe mid pipe w/o the resonator running to the Spoon. Oh **** it was loud, car alarms going off, people flippin me off etc. WITH the Tanabe mid pipe and resonator, still loud but not stupid rice loud, and with the silencer, Borla like smooth deep sound. You definately need the resonator, since it's straight through, any losses should be very minimal.
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Old May 13, 2004 | 04:37 AM
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Default Re: exhaust noise questions? (dacaveman)

No use in doing this. If anything,youll end up losing hp's My advice, search!
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Old May 13, 2004 | 09:46 AM
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Default Re: exhaust noise questions? (dacaveman)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dacaveman &raquo;</TD></TR><TR><TD CLASS="quote">Ok if I bought a race header and then got custom 2.5'' piping that went to the stock axle back. Would this be loud or still sound like stock?</TD></TR></TABLE>


The second your car activates VTEC the sound will be unbearable.
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Old May 15, 2004 | 01:32 PM
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So basically I will get pulled over. And get a fat ticket for my exhaust being to loud.
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Old May 15, 2004 | 04:55 PM
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I was running on a custom made 2.5" b-pipe and it was not fun at all. I was actually losing HP because there was not enough back pressure. Try the Spoon N1 axle back with the T1R b-pie. It should be better. There's a reason why Spoon, Muge, Greddy, etc didn't go with a 2.5" exhaust for the DC5.
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Old May 16, 2004 | 01:33 PM
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Default Re: exhaust noise questions? (dacaveman)

I would make a bit of difference but not alot.
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Old May 17, 2004 | 06:21 AM
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Default Re: exhaust noise questions? (Joshiscool)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Joshiscool &raquo;</TD></TR><TR><TD CLASS="quote">No use in doing this. If anything,youll end up losing hp's My advice, search!</TD></TR></TABLE>

Very seldom do you lose hps from larger exhaust piping
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Old May 17, 2004 | 06:35 PM
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Default Re: exhaust noise questions? (JakeIsCool)

anyone ever try the spoon N-1 with a different b-pipe other than T1R? i tried putting my spoon N-1 with my apex WS b pipe but the mounting point on the WS pipe is different
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Old May 17, 2004 | 07:05 PM
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Default Re: exhaust noise questions? (SoSoJeff)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SoSoJeff &raquo;</TD></TR><TR><TD CLASS="quote">anyone ever try the spoon N-1 with a different b-pipe other than T1R? i tried putting my spoon N-1 with my apex WS b pipe but the mounting point on the WS pipe is different </TD></TR></TABLE>

Used my Spoon N1 with:

1. stock mid-pipe (good tone, not too loud, but boomy at 2200 RPM, no butt dyno gain). I picked up a Honda flange out of a muffler shop dumpster and welded it to the Spoon pipe with a step down fitting.

2. Tanabe mid-pipe (loud, needs silencer for daily driving, drones at 2500 RPM, can feel some punch from 3000 RPM+). Had a 2.25" flange welded to the Spoon.

3. Tanabe mid-pipe w/o resonator (fucken loud, I think I got an aneurysm from it, boomy at 1800 RPM+, loss low speed torque but it moves at WOT). Resonator cut out & replaced with 2.5" straight pipe.


Option #2 worked best.
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Old May 17, 2004 | 07:17 PM
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2.5" piping is too large for a very mildly modified motor. Not enough back pressure causes hp loss.
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Old May 18, 2004 | 05:39 AM
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Default Re: (MyCarGoesVroom)

Backpressure is measured at the exhaust ports....you do not lose hp from having too large of an exhaust.
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