Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Do Silencers work?

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Old Jun 21, 2011 | 09:31 AM
  #1  
Bluwrx2002's Avatar
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From: Silicon Valley, Ca.
Car Info: Impreza Wrx 2002
Do Silencers work?

Hello fellow Suby owners.
I have a 2002 WRX with headers /uppipe and Cobb catted Downpipe. I used to have my Perrin Dual Tip exhaust on but now running stock DP and exhaust because I got a fix it ticket. I'm running silent now but miss the power I lost. If I put silencers on help with the noise?
Old Jun 21, 2011 | 06:47 PM
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JourdanWithaU's Avatar
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Car Info: 2011 SWP WRX Hatch
Silencers do cut down on noise. They wouldn't exist is they didn't. They do also cut down the power as well. Silencers are also generally only made for exhausts that have straight through mufflers with large tips.
Old Jun 21, 2011 | 07:27 PM
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Redils16's Avatar
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From: Walnut Creek/Davis
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Dont quote me on this but i heard that silencers are actually illegal. Something to look in to
Old Jun 21, 2011 | 07:32 PM
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ccalsubi's Avatar
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From: big sur, ca
Car Info: 2008 subaru impreza 2.5i
I have a silencer in my muffler and cuts down noise a lot.
Old Jun 21, 2011 | 07:59 PM
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JourdanWithaU's Avatar
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From: San Jose
Car Info: 2011 SWP WRX Hatch
Originally Posted by Redils16
Dont quote me on this but i heard that silencers are actually illegal. Something to look in to
There is nothing prohibiting silencers...

http://www.cent-21.com/laws/exhaust-us.htm
Old Oct 5, 2011 | 12:45 AM
  #6  
UnknownAlly's Avatar
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From: Stockton, Ca
Car Info: 2004 Subaru WRX Sedan 5MT
I had an Acura GSR that came with a fart can.
Slapped on a silencer and it did nothing at all as far as I could tell.

Needless to say, I traded it for a stock exhaust.
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