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Whats a glasspack?

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Old Jan 21, 2006 | 04:43 PM
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Default Whats a glasspack?

Searchy no-worky.

Just curious.
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Old Jan 21, 2006 | 05:26 PM
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A glasspack is a very cheap(like $20) straight through muffler with the smallest baffles ever. It's most tipically seen on older trucks. If you ever see an 73-87 chevy truck with duals coming out the back and its loud. Its almost a sure thing that is has duals with glassbacks on it. They are very loud and cackle like crazy. They are pretty much just an excuse for a muffler for when u get pulled over for defective exhaust.
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Old Jan 21, 2006 | 05:26 PM
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It's a straight through muffler with fiberglass packing inside to deaden the sound a little. Examples would be Dynomax Bullets and Purple Hornies.
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Old Jan 21, 2006 | 08:18 PM
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Originally Posted by Go Topless
It's a straight through muffler with fiberglass packing inside to deaden the sound a little. Examples would be Dynomax Bullets and Purple Hornies.
I would not confuse a glasspack with a bullet muffler. Glasspacks have fiberglass deadening which tends to blowout with time. Bullet mufflers and i believe magnaflow as well have stainless steel wool instead which wont rust or blow out. Glass packs usually sound fairly decent at first until youget a few miles on em, then they just get loud, raspy and like it was mentioned they "cackle".

Cherry bomb exhaust is probably the most popular glasspack.
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Old Jan 21, 2006 | 08:34 PM
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very F*&$ing loud! thats what the are!!! i have a set on my lincoln mark VIII and it was the biggest mistake i have ever made! VERY hard to live w/!
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Old Jan 21, 2006 | 09:01 PM
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blat blat blat blat.....

Every FRIGGIN truck in town has them.!!!!!!
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Old Jan 21, 2006 | 10:30 PM
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they are loud, but nothing like LT headers, ORY, and open cut-out loud A few of my friends have them on their trucks and i dont think they are that bad. Ive heard alot of f-bodies that were louder.
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Old Jan 21, 2006 | 10:50 PM
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Glass packs make kick *** resanators!
So cheap so its fine to replace every 2 so years.

I had them with a muffler on my honda worked awesome * 0 rasp or drone on a I-4 heh* and just glasspacks on 5L project now that was loud and badass
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