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Glasspacks and the Sound Police

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BlazerGuy, Oct 12, 2000.

  1. BlazerGuy

    BlazerGuy 3/4 ton status

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    My current muffler is rusty and I want to replace it with a glasspack, but my dad doesn't want me to because he thinks I will get a ticket for being to loud. How much louder are they? Has anyone ever got a ticket for them? Thanks.
    Also, I'm running a stock 305.

    [​IMG] YEEEE HAWWW!!! [​IMG][​IMG]
     
  2. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>I had glasspacks last year, and I dont think they're worth the $20 they cost. They are loud, but they have a rappy sound and actually reduce power. I changed mine out for a pair of Flowmaster 2 chambers a few months ago and I always get people coming up to me and saying "damn, that sounds nice, what exhaust is that?". The 2 chambers cause a lot of interior resonance (i dont care, i dont drive it daily), if you dont want that get the 50 series, they too sound nice. And, you can get Flowmaster to mail you a sheet saying they're muflers are 50-state legal. My freind got pulled over one day in his Monte and he showed the cop the sheet and he didnt get a ticket.</font color=blue>
     
  3. loudandproud

    loudandproud 1/2 ton status

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    I have glass packs and I haven't gotten a ticket. I've drove right by the police with those babys full throttle. I've just got a little 305 and people are surprized when they find out its just a 305, cuz its so loud. Sounds great too, had many compliments.
     
  4. slodawg

    slodawg 1/2 ton status

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    Ive got a 350 with mild cam its got hooker headers, 24 inch glasspacks and 6inch echo tips on it. I personally love the way it sounds (especially when I romp on it) Ive got a few buddy's that are cops and they say its not illegal. They said its rated on a decibal system and most cops do not have meters. Each state has certain laws pertaining to this. Go to your local police and ask'em. A descent muffler shop will be able to let you know I would think.

    <font color=blue>SLODAWG</font color=blue>
    http://www.slodawg.coloradok5.com
     
  5. rich'90

    rich'90 1/2 ton status

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    I agree with biggray. They aren't worth it and they are very loud with power loss. You will get sick of it being so loud inside. I was running true duals with them and could not even talk to the person sitting next to me.
    Just one persons opinion.

    Go heavy or Go home[​IMG]
     
  6. Blaze

    Blaze 1/2 ton status

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    I've got dual glasspacks on my 75 Firebird and a 50 series on my truck. The Firebird sounds like a NACSAR racer when I hammer it. It's not illegal around here in NC, but I know it is up in PA. That 50-series drives me nuts in my truck. It makes the inside loud as hell. Wish I wouldn't have spent the money on it because it is my daily driver and driving me crazy. Luckily I am deaf in my left ear and I can't hear the exhaust too well. Unfortunately I'm having surgery to correct that tomorrow so I will hear it, if it doesn't make me go deaf that long after that.

    http://www.ncclassics.com
     
  7. DMK

    DMK 1/2 ton status

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    Have a single glasspack 3" in/out and a 12 inch case. Not really too loud, but after awhile the resonanace inside the truck gets to be too much. Also noticed a loos of low end power. Go with the flowmaster cat back exhaust, or do a custom with a flowmaster muffler.
     
  8. '73 K5

    '73 K5 1/2 ton status

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    Its different for each truck. I think with a single exhaust with a cat it shouldn't be that obnoxious. Back in high school I had headers, 2.5 inch pipes and 'packs on a '79 Blazer and I loved it. I tried packs on my current Blazer and it just didn't sound the same. So I switched to 2 chamber Flows and I love it.

    '73 K5
    Chevy good...Ford bad
     
  9. DOUGHBOY

    DOUGHBOY Registered Member

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    my 85 k5 has glass packs on it now.that is what really sold me on my blazer it sounded so good.well its been 6 weeks since i bought it .they are getting replaced in the morning.mind you my whole exhaust is new.it so loud its gets on my nerves now.of course i may just be getting old.

    guns dont kill postal workers do
     
  10. Eric

    Eric Registered Member

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    Glasspacks are junk. I would suggest Flowmaster or would do some research so you get good quality mufflers. Sound is not everything!

    One eyed super fly- watch out!
    86 K5 Blazer
     
  11. ftn96

    ftn96 1/2 ton status

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    Do headers really make that much difference if you have to run them through a catalytic converter??

    Don't you buy no ugly truck!
     
  12. BigBurban

    BigBurban 1/2 ton status

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    >Do headers really make that much difference if you have to run them through a catalytic converter??

    Yes... Due to the fact they have much better scavenging characteristics (ie: the exhaust coming out of one primary tube actually creates a vacume in the other three). Along with the larger primary/collector size, these are the main attributes of going to a header. On another note... The closer the restriction that you remove is to the exhaust port, the greater the effect it will have on power.



    <font color=red>~BigBurban</font color=red>
    http://www.geocities.com/crash607
     
  13. BlazerGuy

    BlazerGuy 3/4 ton status

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    Does anybody have Borlas? Do they sound better than Flowmasters??

    [​IMG] YEEEE HAWWW!!! [​IMG][​IMG]
     
  14. Blaze

    Blaze 1/2 ton status

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    A friend of mine has Borlason his 96 Camaro. It sounds pretty nice. He has a 6 speed though. Another friend has borlas ofn hos jeep and it sounds like some import oy something.
    (Pardon the spelling, I just got back from the hospital from ear surgeryt and I am a little druggged)

    http://www.ncclassics.com
     
  15. Blazer79

    Blazer79 1/2 ton status

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    I also agree with Biggray. Get the 40 series Flowmasters. You won't regret it. I have two on my Blazer with it's stock 350 and sounds very nice. The interior resonance is minimum in my case, maybe because I used an H-Pipe. I can speak softly inside and get listened. If you open your carb's secondaries everyone will notice you're coming, though. It's like the perfect balance between glasspacks and mufflers.

    <font color=blue>//////
    http://blazer79.coloradok5.com
    </font color=blue>[​IMG]
     
  16. 88K5Rhododendron

    88K5Rhododendron Registered Member

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    I just put a glasspack on my 88 this morn... Enormous difference.. but that's coming from a meineke lifetimer...
    and just for fun I drove through a Freddies parking lot gunning it every few feet... I set off 4 car alarms! Sweet!

    It's a 350 with a 3" in/out 24inch pack... but i put kerosine in it before they installed it ... so basically it's a straight pipe...

    gasoline4life! Or rocket fuel... I could see my blazer with some rockets on it... :)
     
  17. sosamantx

    sosamantx 1/2 ton status

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    <font color=blue>I had some glasspacks on my 67 Chevelle (sb 350, not stock one bit), and one time I was going down N. Lamar (yes in Austin) and there was this cop up ahead on my left (no I didn't see him until it was too late) and he had someone pulled over on a side street. Well I had gunned it and was speeding and basically he heard me coming before I was even there. He ran to his car, turned it around and pulled me over for exhibition of acceleration. Needless to say, I changed them to turbo mufflers soon afterwards. Yeh, they sound good, but I like my Flowmasters better. Fyi, 3 chambers are quiter than 2 chamber Flowmasters. - Steve :)</font color=blue>

    <font color=blue>Steve Sosa a.k.a. "sosaman"</font color=blue>
    http://sosaman.home.texas.net/carpics.html
     

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