Muffler

Discussion in '80-Series Tech' started by Vanny, Feb 21, 2009.

  1. Vanny

    Vanny

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    The muffler (original) in my 94 FZJ80 is needing to be replaced. The internals let go and it rattles like crazy. I am wondering what kind of mufflers guys are using with the stock piping. Are there any that will give a bit more power without being crazy loud? Tried finding a Magnaflow but can't seem to find one that works size wise.
     
  2. trapper92

    trapper92

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    I did a lot of research on this topic a while back, also looking for more of a growl without replacing the entire exhaust. Personally I would stay away from magnaflow as guys are saying that they are too loud on the highway and they just don't seem to be happy with them.
    Your stock muffler body is 23 1/2" long, the flowmaster below has a total length of 23" and if you use the dynomax mega clamps (below) in a OD to ID lap style it should just bolt in.
    Just sawzall the stock pipe as close as you can to the muffler at either end.
    The stock muffler is 9" round, the flowmaster is like 5 x 10" I believe, so it should fit and clear the driveshaft.
    The flowmaster mufflers are a bit more expensive but I think a little more R and D went into their product and they have a deeper sound that I like and a sturdy welded case to boot.

    links below:


    50 Series SUV / Perf. 2.25" C/C [52455] : Flowmaster Inc. Exhaust Shop, Love That Sound!

    Dynomax Performance 33975 - Dynomax Mega Clamps - summitracing.com
     
  3. jamisobe

    jamisobe

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    I used the 70 series which is basically the same as the 50 series except that it is a tad more narrow which also contributes to a nice fit.

    It sounds very good. I do recommend using a the stock resonator or else an exhaust insert to lower drone at higher rpms.
     
  4. beachcomberspi

    beachcomberspi SILVER Star

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    I second the Flowmaster SUV performance series! I have it on my 1994 4Runner and will put one on the cruiser as well. Great sound and seat of the pants torque increase.
     
    Last edited: Feb 22, 2009
  5. Vanny

    Vanny

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    Thanks. Sounds like the one I should use. I want more power but don't want to kill the kiddies ears.
     
  6. Vanny

    Vanny

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    Should I leave the small muffler at the end of the exhaust?
     
  7. jamisobe

    jamisobe

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    If you don't want to kill the kiddy's ears I would. You will have exhaust drone at freeway speeds if you do not have a resonator or an exhaust insert.
     
  8. trapper92

    trapper92

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    If it were me I would leave it on, drive it and if the exhaust isn't loud enough for you then cut it off. Its there to work with the muffler and cancel out any of the annoying sound frequencies ......... give it a go and let me know the results.
     
  9. Mrs4x4

    Mrs4x4

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    Almost everything is iilegal in CA. Does replacing the muffler count?
     
  10. d0ubledown

    d0ubledown

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    did you end up with a flowmaster greg? which one? i pinched my piping bad today, and think im going to go with a frame over route with a new lower profile muffler. dont mind a tiny bit louder, a touch over stock. ill be keeping the end resonator. was thinking of flowmaster or a dynomax.

    is stock piping 2.25 OD?
     
  11. SBFJ60FIG

    SBFJ60FIG

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  12. d0ubledown

    d0ubledown

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    linky no worky.

    i ended up with a thrush muffler which is made by dynomax i think. the exhaust piping really sticks out there...they werent able to do a frame over without a body lift. its louder than stock but not overly so. most of the drone comes from partial throttle between 1-2k.

    now i gotta think of some way to skid the under frame piping...i can see myself hitting there again :( stupid toyota exhaust routing
     
  13. IBCRUSN

    IBCRUSN

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    I've been happy with the muffler I purchased from United Muffler. They are built well and the prices are pretty darn good for the quality.

    United Muffler

    IIRC I went with the B-0045, 2nd from bottom in right column.

    No affiliation etc, etc just a satisfied customer.
     
    Last edited: Mar 3, 2009
  14. SBFJ60FIG

    SBFJ60FIG

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    Linkie now workie....I got a little pissy in my post...but man you dudes and chics did not come to my rescue!!!!!!!!!!

    FYI, the pipe size seems to be exactly the same....so I think it's a 2.5" pipe.

    I happen to actually be driving the truck now so if anyone wants some pics of the installed muffler just say so and I'll try to shoot some tonight.

    Figgy
     
  15. johnnyquest

    johnnyquest

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  16. Box Rocket

    Box Rocket SILVER Star

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    I wouldn't mind seeing some pics if you can post em up.
     
  17. SBFJ60FIG

    SBFJ60FIG

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    If I don't get to it in a day or two someone PM me and I'll take some shots of my bad-mo-fo of a muffler and make all you envy me!!!!

    Hah...unlikely!!! Very VERY unlikely...but it works!
     
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