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Attn. Owners of Flowmaster muffs....

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 77K5Blazer, Aug 27, 2001.

  1. 77K5Blazer

    77K5Blazer 1/2 ton status

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    Ok...heres the deal...I cannot decide between Flows (40 and 50) or glass packs! I don't like to much "rapping" so I am pretty sure that 36" dual glasspacks would be the best choice! But...I am liking the idea of the flows! Heres the kicker, I want a muffler with a DEEP idle, that has good sound that is not overly obnoxious when revving easily, but barks when I romp on it! I don't want something that will drown my weak system out when I am running at 2500 rpm on the highway...so, will 40 or 50 series work best? I am leaning more towards the 50s, but I am just not sure if they have enough bark for my tastes! Also, anyone running any of the three choices, could you tell me what you paid, and what you got? Price will be the deciding factor between flows and packs! Thank you very much for any info provided!! P.S. just out of curiosity, does anyone know what Project UAV has for muffs?

    <font color=red>1977 Blazer, GM350, SM465, NP205, Dana 44/ 12bolt, 33x9.50r15 BFGs Muds</font color=red>
    <a target="_blank" href=http://www.77k5.alloffroad.com>www.77k5.alloffroad.com</a>
     
  2. Rockjunkies

    Rockjunkies 1/2 ton status

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    If it is going to come down to price, I hope you will be happy with your glass packs!!! Me personally, I would go with the flow!!!!!!!

    Keep it simple!
     
  3. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I have the Flowmaster 50 series and they are great, nice note out the back but not over whelming.

    Steve

    Bandwidth FREE ZONE

    Mall-Running poseur 4x4 with curb-feelers
     
  4. ken

    ken 1/2 ton status

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    I assume the 40s are the two chambers and the 50s are the three chambers? If so, I've got 2 chambers on my CJ7 with a 401 engine and it is REALLY NOISY. It sounds just bitchin, but it's noisy. I also have the three chambers on my Suburban with 454 and it sounds really good and not too noisy. Choose your weapon, but stay away from glass packs!! They ROB horsepower, whereas Flowmasters actually increase horsepower.

    ken
     
  5. Blazer79

    Blazer79 1/2 ton status

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    My setup is 350 w/ stock cam, Flowtech Afterburner headers, H-pipe, all 2.5" pipes. Listen to them here:
    <a target="_blank" href=http://www.psicologiaparaninos.com/blazer>www.psicologiaparaninos.com/blazer</a>


    <font color=purple>//////
    <a target="_blank" href=http://blazer79.freeyellow.com>blazer79.freeyellow.com</a></font color=purple><font color=black>
    Soon a 454 K5!!</font color=black>
    [​IMG]
     
  6. SlyDog

    SlyDog 1/2 ton status

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    You guys had way to much fun making those audio files [​IMG]

    1977 K5 Blazer [​IMG]
    GET IT AWN
     
  7. DesertDueler

    DesertDueler 1/2 ton status

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    I would recomend the magnaflows. They have a deep idle, and are loud when you get on it, but arent "rapping" or droaning when cruising. They have a limetime warranty to. There is design is exactly like the Borla but cost a little less than the flowmasters. Check out their site My vehicles
     
  8. DesertDueler

    DesertDueler 1/2 ton status

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    BTW I have blown three sets of Flowmasters on my Firebird, and one on my Jimmy. Since switching to the Magnaflows, I gained more power and haven't blown them out. They are strait through design so you cant blow them!!

    86 Jimmy 4"lift 35"MTRs Other cars 69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  9. nyyef

    nyyef 1/2 ton status

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    i got a pair of three chamber flows. very nice. mellow deep runmble below 3500rpm. the volume goes up after that.

    Knife.
    knife.coloradok5.com
     
  10. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    The Forties will wear you out with droan on long hauls. I hope the cats that are going back on this weekend quiet it down. If not they may have to go.

    It's not my damn planet monkey boy!
    <a target="_blank" href=http://communities.msn.com/OffroadK5s>communities.msn.com/OffroadK5s</a>
    75 Jimmy, Dollar
    79 Chevy Blazer, Her's
    70 Chevy Burb
    Grim-Reaper
     
  11. muddin4fun

    muddin4fun 3/4 ton status

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    go to my site in the sig there and go to the blazer page. There are some videos at the bottom of the blazer page. I'm running the 50-series.

    It's been lovely, but I have to scream now.

    <a target="_blank" href=http://www.geocities.com/muddin4fun79blazer>My wonderful site</a>
     
  12. johnny reb

    johnny reb 1/2 ton status

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    I have Thrush Glasspacks that I got from Summit. I've also had Flowmasters on my truck. Honestly, I like the sound of the glasspacks better. I haven't noticed a drop in HP since taking off the Flowmasters. If there was a drop in HP it is not noticeable.

    1986 K5, New GM 350, Edelbrock Intake, K&N Air Filter, Flowtech Headers, Dual 3" Exhaust, 33" Pirelli Scorpion AT, 700R4, 3.42 gears
     
  13. Emmettology 101

    Emmettology 101 3/4 ton status

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    I am putting in my vote for Flows!

    Mike

    <font color=green>"It's like a sore dick deal, You cant beat it!"</font color=green>

    <a target="_blank" href=http://www.geocities.com/emmettology101>www.geocities.com/emmettology101</a>
     
  14. OneLeft

    OneLeft 1/2 ton status

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    I run the two chamber Flows on my Blazer and I love how it sounds. My father runs the 3 chamber Flows on his 454 and it sounds sweet. Very low tone, but you know it when you’re on the right pedal.

    OneLeft

    http://coloradok5.com/gallery/OneLeft
     
  15. Stoopalini

    Stoopalini 1/2 ton status

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    I've got 2 Turbo II Glasspacks on my truck, and I'm content with them. They were cheap enough (something like $20 a piece). They do not roar unless you stomp on the gas, and at idle, it is a very smooth rumble.

    These are not the classic GlassPack Cherry Bombs most people think of when they think GlassPacks. They are a standard turbo muffler.

    Thomas.

    -- '84 K5 Blazer --
    <a target="_blank" href=http://stoopalini.off-road.ws/blazer>My Blazer Site</a>
     
  16. Skigirl

    Skigirl 1/2 ton status

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    Grim, would you post the results re: sound when you put the cats on? I have the same concern about droning on long hauls.
     
  17. jackedjimmy350

    jackedjimmy350 1/2 ton status

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    i vote for the flows!!!
     
  18. Chaz316

    Chaz316 1/2 ton status

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    DesertDueler

    What did the Magna Flows cost and which size did you get? INlet/OUTlet Length of pipe...etc.

    "If it aint broke don't fix it" is like a 4 letter word.
    <a target="_blank" href=http://www.phatboy.alloffroad.com>PhatBoy.AllOffRoad.com </a>
     
  19. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I can't hear my 40's on the freeway...at all. Of course thats because the friggin swampers are so loud! The 40's do have a real nice bark to them running through the gears in town though. I think I'm going to add some 3 1/2" boom tubes...

    "Loud pipes save lives..."[​IMG] that'll be my excuse anyways!

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  20. Stephen

    Stephen 1/2 ton status Moderator Vendor

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    I have a pair of 50 series flowmasters and they're almost too loud for my taste. It's pretty rumbly on the trail, and really barks when you get on it. Overall not bad, but for strictly slow trail use, it's too much. I like to be able to hear a little more than I can now. It is fun to fire it up and turn heads, then lay into and make jaws drop.

    Making the world better, one truck at a time.
    SW-ORD
    <a target="_blank" href=http://www.offroaddesign.com>www.offroaddesign.com</a>
     

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