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Mufflers

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by ShinnyHelmet, Sep 28, 2001.

  1. ShinnyHelmet

    ShinnyHelmet Registered Member

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    I have a 71 K5, 4" lift, 33" tires and am now running a single exhast. What is a good muffler? I am looking for something that is louder than what I have now..(sounds like a car now) so I was thinking about a duel exaust system. Ive heard about flowmaster 50 and 70 series but was not to sure about noise. I dont want it too loud nor do i want it too quiet. And if I were to get this type of setup ..is it best to run the tips to the rear or to sides before the tires?..Thanks for any comments
     
  2. SlyDog

    SlyDog 1/2 ton status

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    Sounds like you want a 50 series flowmaster.

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    The flag still stands for freedom and they cant take that away !
     
  3. arq

    arq 1/2 ton status

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    make them come out behind the rear tires to the side or you'll be smelling your own fumes.

    ARQ.

    offroad baja!!!
    1-72 4x4 CST Blazer
    2-71 4x4 CST Blazer
    <a target="_blank" href=http://coloradok5.com/gallery/ArqDennis>My Pics</a>
     
  4. Triaged

    Triaged 1/2 ton status

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    I like DynoMax mufflers. They are a bit quieter than flowmasters, flow more, and are about 1/2 the price.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  5. Steve_Chin

    Steve_Chin 1/2 ton status

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    The Dynomax Super Turbos are one of the best bets going in the musclecar scene. They're throaty but not obnoxiously loud. I went the other way with my mufflers since my Blazer is a hunting vehicle: I got Walker Quiet-Z mufflers, which give up a tiny bit of performance to the Dynomax, but they're pretty quiet (until the hammer is dropped, then they're loud).
     
  6. BobK

    BobK 1/2 ton status

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    I just did my truck with 2.5" aluminized pipes and the Dynomax super turbo mufflers.Nice low rumble at idle with a bit of a roar when you get into the gas.The interior noise isn't that bad either.
    Click the link for pic's of the install of my new exhaust system.
    <a target="_blank" href=http://www.imagestation.com/album/?id=4292390471>http://www.imagestation.com/album/?id=4292390471</a>

    <font color=green>BobK<font color=green>
     
  7. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    I have headers, 2.25" exhaust with a H pipe crossover, and three chamber flowmasters. I'd say they're not too quiet, but not too loud. I love it. I liked when I cut off the old 2.5 tips and welded on some new 3" tips... gave it a better, throaty sound.

    I keep having the urge to get all new exhaust with 2 chamber flowmasters, but everytime a cop pulls up next to me I'm glad I didn't yet.
    I can be in stealth mode in third gear, and be quiet past cops, but when I want someone down the street to turn around I can kick it down into 2nd or 1st and make it roar.

    The 3 chamber flowmasters are quiet, but nice sounding at idle, and when you get on it they sound great.
     
  8. ShinnyHelmet

    ShinnyHelmet Registered Member

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    Thanks for the post
     
  9. POFF

    POFF 1/2 ton status

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    I have two chamber Flow Masters. The full length tail pipes quiet it down quite a bit. My truck isn't loud enough to get pulled over. Although a Blazer needs quieter mufflers because the sound will resonate through the cab. Definatly have the pipes come out to the side behind the wheels. ARQ is right if you run with out a top the fumes will come right back inside. I had an H-pipe added and I swear it made a differance in bottom end torque. If you get an H-pipe have them put a flange in the middle so you can take it apart if you have to work on something.

    '70 K-20 San Diego, CA
     
  10. 72Blazerod

    72Blazerod 1/2 ton status

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    Hey Guys,

    Can you give me as estimate of what a two Dynomax mufflers would cost? Do you have the part numbers?

    Thanks,

    Rod

    <a target="_blank" href=http://communities.msn.ca/72BlazerodsOldChevyTruckPage/photoalbums.msnw>http://communities.msn.ca/72BlazerodsOldChevyTruckPage/photoalbums.msnw</a>
     
  11. Steve_Chin

    Steve_Chin 1/2 ton status

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    Summit and Jeg's both carry them for a pretty reasonable price. I think less than $100 for the pair.
     
  12. Triaged

    Triaged 1/2 ton status

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    I got mine for my s-10 (a 2-1/4" DynoMax SuperTurbo) at Kragen for around $30. It was a few years ago though,

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  13. BobK

    BobK 1/2 ton status

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    Here is a pic. of the part# and diagram of the outlet and inlet locations that are on the box of my Dynomax mufflers.
    <a target="_blank" href=http://www.imagestation.com/picture/sraid26/p614e2bd31ebf8eed5e5b8fb14a52ea30/fe440432.jpg>http://www.imagestation.com/picture/sraid26/p614e2bd31ebf8eed5e5b8fb14a52ea30/fe440432.jpg</a>

    <font color=green>BobK<font color=green>
     

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