How to quiet down my exhaust

Posted by fulanititoo8198, Mar 16, 2008
Bolt-on Tech - 4G63 intake, exhaust, intake manifold, ignition, fuel system, cooling, etc.

  1. fulanititoo8198

    fulanititoo8198 Proven Member

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    YeaRight, Florida
    I am wondering what will quiet down the exhaust the most. An aftermarket muffler (I doubt it), A stock muffler (I was considering using an evo muffler and welding the 3" line to it), or making my own silencer ( such as the typical rice can muffler silencers) and stuffing it in the pipe.

    What I have is 3" line with a 3" cat no muffler. I would like to go as quiet as possible I don't care about flow what so ever. It can flow less than stock for all I care I just need it to stfu for as cheap as possible.

    Please reply based on experience not guessing

    Thanks
    #1
  2. kmoore

    kmoore Proven Member

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    Your best bet would to throw a resonator on there. That or, like you said, a stock muffler.
    #2
  3. VETTE_50_TH

    VETTE_50_TH Banned Member

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    Get one of those in line flowmaster, and weld the rest with 3 inch pipe to the back. Basically like your evo idea. Should cost about 80 bucks.

    James :laser::talon:
    #3
  4. SethA

    SethA Proven Member

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    I would look through here and find that you're looking for:

    http://www.dsmtuners.com/forums/dsm-video-links/137124-post-exhaust-clips-here.html

    Do you still have your stock exhaust? You could run that with a manual, boost, or electric cutout. I run the old RS*R 3" with cat. It has 2 resonators and a big muffler. I have made test pipes to replace the resonators, the cat, or the muffler or any combo. The resonators with the cat and no muffler sounds the best to me except it gets loud if I drive on longer trips. If you are looking for the quietest setup, I would put a big muffler in there. I have only used the RS*R so I can't really recommend any other specific muffler.

    Seth
    #4
  5. JayRolla

    JayRolla Proven Member

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    If you want flow and still be a little quiet, I know a guy that installed a straight through muffler at the cat and it sounded nice.
    #5
  6. turbo90gsx

    turbo90gsx Proven Member

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    If your looking for all out quietness I would sugest using a couple resignators and then a chambered muffler.

    I ran an open stock downpipe, no cat, with just a cheap Rapter muffler and it was pretty quiet for the most at cruising.
    #6
  7. deflator

    deflator Proven Member

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    Get a muffler with a removable silencer. I have the Megan N1 style muffler, and its the best of both worlds. Leave the silencer in and you get ~30% noise reduction as well as better low-end torque response because of the restriction. Or take it out when you need all your top-end or just want to roar around :thumb:
    #7
    Luisx2141 likes this.
  8. turbo addict

    turbo addict Proven Member

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    my friend has a magnaflow 3in muffler and is pissed because it is too quiet.
    #8
  9. blcknspo0ln

    blcknspo0ln DSM Wiseman

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    That's easy. Get rid of your 3" catback, bolt a stock catback to it, and get a 3" QTP electronic cut out.
    #9
  10. Black_Bullet

    Black_Bullet Proven Member

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    ..... ;)
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  11. fulanititoo8198

    fulanititoo8198 Proven Member

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    YeaRight, Florida
    This was my original plan a stock exhaust system but its been about 2-3 months searching for one and I have not found one. If you know of any let know.
    #11
  12. DougR

    DougR Proven Member

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    Chepest way out for Quiet.. a 3" inlet and duel 2" outlets made by fkowmaster. get the 3 chamber and a New High flow cat, check the CFM rating on them, higher the better, but lso a tad bit louder. I think you will be pleasently suprised.


    the Cut out is Cheaper, but the SMog nazis might give ya grief.
    Your electric cutout
    QTP - QTEC Electric Cutout :thumb:

    Hook it to a RPm trigger or Boost Trigger, Maybe even a WOT switch usded for niitrous kits.

    I think~ we have a few Supporting vendors that carry both, and possibly in a Kit for.
    here is the Ypipe needed fr the cutout. or Fab your own,
    Hedman Quick-Eze Exhaust Cutouts - summitracing.com
    #12
  13. blcknspo0ln

    blcknspo0ln DSM Wiseman

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    Try posting up a WTB ad on nj.dsm.org ;)
    #13
  14. Black_Bullet

    Black_Bullet Proven Member

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    I got my cutout from here http://www.dmhperformance.com/ecutout.htm
    After my 3in dp and E-cutout i have a 2.5in catback going into stock muffler...
    You dont need stock pipeing, and id actually not recommend throwing something that
    small onto your car, its pretty restrictive.
    I have a stock muffler id sell you if you were interested, its for a 1g though.

    If you want to be creative and get more flow out of your setup with the cutout in closed position but still have the quietness... Something i thought of, try a muffler from a stock car that you know flows more than our old dsm stock mufflers...

    Like a stock evo9 muffler, or sti muffler for example... Quiet, but still managed to flow decent. I was thinking of going this route... Theres a handful of well tuned Sti's laying down a little over 300awhp on stock muffler and piping with just a upgraded dp while still being on their stock turbos.... Just a thought.
    #14

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