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Will this be too loud?

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Old 05-31-09, 11:42 AM
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Environmentally-Hostile

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Will this be too loud?

After installing my header I still need to put another 'muffler' in between the header and connecting pipe to complete my exhaust. I'm thinking about putting a dynatech split flow muffler there in conjunction with my 'can style' 10'' muffler at the tip. Dynatech says between 5-10DB reduction, and I figure the tip muffler would be good for another 2 or so. But knowing HOW LOUD it is open header, I'm not sure if it will be enough...

Here is the dynatech in question:
http://www.afabcorp.com/AFCO_Dynatec...ode=split-flow

I don't want it to be super quiet, just legal and so it won't make my ears bleed.
Old 05-31-09, 04:52 PM
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Go to eBay and look under this seller's name.

wickednickyexhaust

You should be able to find a pre-silencer that will fit your needs. I recommend a 14" long oval, with a a center inlet on one end, offset on the other. He has the best Borla prices I've seen on the net.
Old 05-31-09, 06:55 PM
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Remember that hi-flow mufflers cancel out sound by knocking out certain frequencies, so 2 may be cancelling out the same frequencies and therefore not be much quieter.
As long as you get low notes it tends to be less annoying.
Old 05-31-09, 09:37 PM
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Originally Posted by trochoid
Go to eBay and look under this seller's name.

wickednickyexhaust

You should be able to find a pre-silencer that will fit your needs. I recommend a 14" long oval, with a a center inlet on one end, offset on the other. He has the best Borla prices I've seen on the net.
Before you do this, I highly recommend taking a look at the pictures I posted of mine (purchased from Wicked Nicky).

https://www.rx7club.com/showpost.php...4&postcount=32
Old 06-01-09, 12:21 AM
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Yes I remember seeing that. If its too loud, I will chop off the tip muffler and stick on a racing beat universal 2.5'' muffler, that should make it manageable.
Old 06-04-09, 01:20 PM
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Alright well I just got back from the muffler shop after installing my dynatech, and I have to say the noise level is just about ideal. Its actually quieter than stock (with exhaust leak) at partial throttle, but livens up quite a bit at wide open. All together it sounds and flows way better than stock!

2.5'' from header to tip with a dynatech split flow muffler, and a 10'' resonator at the tip. It breaks up in the higher RPM's unfortunately and kind of sounds raspy. Give me a few minutes and I'll get a vid. All in all its more aggressive than the racing beat without being annoyingly loud under normal driving. (exactly what I wanted ) I would recommend the dynatech split flow, it does work on a rotary.


edit: here is the vid
http://www.youtube.com/watch?v=TbudnONAXcw
Old 06-04-09, 01:39 PM
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Here is just 1 muffler on the RX, before we welded on the other:

http://www.youtube.com/watch?v=7tRxEfrbRpo

Took it for a drive... man, that thing SCREAMS at 4k
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