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Old 05-27-2012, 12:48 PM   #1
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"Custom" exhaust idea... Opinions?

So, I'm not here to get flamed or start a war... Just had a thought and wondered what anyone else thought...

Everyone says the Mk3 sounds "almost boxerish" so... Why not get an exhaust designed for a Boxer and modify???

Ok... Begin discussing below... ;)


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Old 05-27-2012, 01:01 PM   #2
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Because all the exhaust is is piping and mufflers. And most wrx exhaust would be to big for our cars. Just get a nice muffler be it borla or magnaflow and have it made.
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Old 05-27-2012, 01:05 PM   #3
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I don't see it working. That would require a crazy header design to flow the spent gas to a sound tune as opposed to performance. Interesting thought, though.

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Old 05-27-2012, 01:18 PM   #4
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two reasons... obviously the first is the design of the engine.

second and most useful reason is that to get a similar sound would require a custom header with unequal runner lengths...

the idea is to add more distance the exhaust has to travel on only. few cylinders. I won't get too technical into it because I have never studied/experimented with it yet.

There is a civic hatch on YouTube that has a custom unequal length header. Hard to find video but it sounds like a subaru with vtec.
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Old 05-27-2012, 01:22 PM   #5
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I was more just thinking cat back... But a full custom exhaust with headers would be an interesting experiment
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Old 05-27-2012, 01:25 PM   #6
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I don't feel the Mk3 sounds very boxer... Personally
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Old 05-27-2012, 01:26 PM   #7
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And a very expensive one to do to a car that costs $20k;remember too much flow slows down the exhaust velocity and will reduce power on the low end. An exhaust on most NA cars is more about sound with a little gain on the top end. I'd just like soemthing with a little more growl and a better tip(s).
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Old 05-27-2012, 01:28 PM   #8
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well the header would be interesting.

found the video, its called "EK hatch exhaust test"

also while you're there look up equal length headers for Subaru and see how it sounds.
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Old 05-27-2012, 01:35 PM   #9
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Yeah, you can kill the Boxer sound with changing the headers...

I'll have to look up that video.
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Old 05-27-2012, 02:08 PM   #10
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I personaly think it sounds more SRT4'ish then boxer'ish
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