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Thread: Resonator vs glasspack vs straight through muffler

  1. #1
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    Resonator vs glasspack vs straight through muffler

    Can someone explain the main differences? I'll start off a little:

    Glass pack is a straight through tube, where the casing is larger than the actual inlet/outlet diameters. But inside the tube is a whole bunch perforated holes inside, then a layer of fiberglass strands "packed" tightly inside. Hence Glass pack. It does a good job reducing the "vibrant" sound coming from the motor, aka the buzz. On my 3g I had a pacesetter header 2.5" collector, and 2 2.5" glass packs. I think they are something like 37" in length each. And I had experiences with straight header, 1 gp and 2 gp's.

    Completely straight header sounded awful, not like those high displacement cars with straight headers, it sounded like a car without any mufflers (which it is) and has that bad sound.
    1 glass pack did a great job in changing the tone of the car, it sounded "good" from inside, but it resonated alot under the car because it didnt exit out the back.
    2 glass packs sounded really good, it exited out the back like it should and didnt resonate at all. The only time it didnt sound good is if the motor was under a heavy load and couldnt keep up, sounded kinda diesely. IE 40kmh in 5th gear in low revs

    Thats my brief intro of glasspacks, but whats the difference between it and a resonator? A resonator must use resonant sound to cancel it out or something, but its still entirely straight through. From what I hear a glasspack when you "ding" it with a flick of your finger is a dull thud, but a resonator should have a distinct ting to it.

    And as for straight through mufflers, I dont have much experience with them either, and I dont see them acting any differently than a resonator would (*if Ive got a basic understanding about resonators)
    I dont know if those aero-turbine mufflers count as straight through, but I would probably put it in that category.

    Any insight?



  2. #2

    A20A1's Avatar
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    Re: Resonator vs glasspack vs straight through muffler






    That was the supposed Resontor from my friends 95 Accord.
    It has holes and packing material in it, so that makes it more or packed tube muffler.
    I should have guessed it though... most resonators are only slighty bigger then the pipe diameter. They look like a bump.

    I think actual resonators have no packing, they may have angled... or corregated like bumps on parts of the inside tube to reflect a certain range of sound waves back.

    I think the main difference is one absorbs sound the other reflects sound...


    I think aero turbine is a hybrid straight thru... but it's more traight thru then a chambered muffler thats for sure.
    Last edited by A20A1; 01-24-2006 at 09:33 PM.

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    Re: Resonator vs glasspack vs straight through muffler

    I wonder what a single in / dual out Magnaflow would sould like with two resonators as tips.

    http://cypherindustries.com.au/catal...tem=resonators

    those are resonators... though they don't give you a shot of the inside...
    Last edited by A20A1; 01-20-2006 at 11:45 AM.

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    Re: Resonator vs glasspack vs straight through muffler

    from what i understand, they are all sorta the same thing, with different levels of sound dampening material...?
    94 Altima [KA24DE, auto - 15.9]
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    lostforawhile's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    a glass pack has a deeper sound vs a resonator only which has a fart can sound. thats why they are called fart cans by the way,sounds like someone farting through a metal tube.

  6. #6
    LX User aerokid1987's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    A resonator removes the tinny ricey sound if you are using it with a really loud obnoxious muffler.

  7. #7
    LX User aerokid1987's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    Quote Originally Posted by A20A1
    I wonder what a single in / dual out Magnaflow would sould like with two resonators as tips.
    Heck man go try it and see...

  8. #8
    SEi User 3rdgenhatchDX's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    Sticky please!

    I have a cherry bomb, it rox, yes!

    Breaking news! What has an H in it!

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    lostforawhile's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    oh you got it put on? did they install the tip for you?

  10. #10
    SEi User 3rdgenhatchDX's Avatar
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    Re: Resonator vs glasspack vs straight through muffler

    ha not yet... soon tho tim soon, i got a new fender today check it out on my cam pix thread...

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