resonator, pre-silencer, muffler?

Posted by idt512, Aug 16, 2004

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  1. idt512

    idt512 Proven Member

    Joined May 4, 2003
    Hemet, California
    whats the difference? Id like to quiet down my exhaust system, which one to go with? I have a 3" system with hi-flow cat and magnaflow muffler and id like to quiet down the humming during normal acceleration and idle

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    My DSM:
  2. RossY

    RossY Proven Member

    Joined Sep 27, 2002
    Canton, Ohio
    Muffler- I must believe you know what this is

    Resonator - Basically its just a muffler before the muffler, it's straight through design packed with fiberglass or the sort to absorb some sound. Some people argue whether they really help or not

    Pre-silencer - Don't think ive heard of PRE-silencer but i have heard of a silencer, which is basically something you can put on your muffler to help tone sound down a little more at the cost of hurting flow of course.

    I really don't know how loud your exhaust is but it's never really going to be that quiet simply because its a 3" exhaust.

    Hope that helps :thumb:
  3. Mike1992

    Mike1992 Proven Member

    Joined Jul 19, 2003
    Springfield, Missouri
    I'd go get a resonator welded in, at the local exhaust shop. I had one welded in because my exhaust was to loud and the resonator quieted it down quite a bit. Not all resonators have packing or whatever in them. Mine is straight through with little baffles on the walls.
    My DSM:
    1990 Eagle Talon TSi AWD

    11.292 @ 126.120 MPH
  4. arnie carlos

    arnie carlos Probationary Member

    Joined May 4, 2004
    seattle, Washington
    I have a BR 3" cat back, welded a 3" resonator from Extreme motorsports. I'm guessing that it reduced the sound by around 5db. For me it's worth it, since I drive it 50 miles everyday to work. ;)
  5. beat90tsi

    beat90tsi Proven Member

    Joined Oct 28, 2004
    pittsburgh, Pennsylvania
    resonator helped my high load/rpm noise, but didn't really change idle.
  6. NDgsx

    NDgsx DSM Wiseman

    Joined Jun 10, 2002
    Vancouver, Washington
    That's the worst possible style you can use. They flow as much as a 2.25" pipe.

    You want a perforated core, not louvered.
    My DSM:
    1999 Mitsubishi Eclipse GSX

    11.170 @ 122.000 MPH

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