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questions about glasspacks

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Old Jun 29, 2008 | 09:27 PM
  #1  
305redbird's Avatar
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From: carpentersville illinois
Car: 1986 trans am
Engine: 305 5.0 tpi
Transmission: 700r4
Axle/Gears: 3.23 9 bolt rear end
questions about glasspacks

hi i have a 1986 trans am it has a 2.5 flowmaster on it but its weak


i wanna put on the loudest legal sounding exhaust on it

im thinking thrush glasspacks,cherrybombs,or magnaflow

anyone has suggestions plz let me know..
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Old Jun 30, 2008 | 12:01 PM
  #2  
GuitarJunki17's Avatar
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From: Hamilton
Car: 1990 IROCZ Camaro
Engine: 350 4bbl, 200cc Heads, 270hr Cam
Transmission: 700R4 w/ Trans-Go shift kit.
Axle/Gears: GM 10 bolt Posi
Re: questions about glasspacks

Classicchambered.com sells chambered exhaust pipes. I got one for my iroc and it is freaking loud (although I still have to finish the rest of the exhaust after the chambered pipe, that extra length of piping should mellow it down some). It's really nothing more than a straight pipe with some baffling.
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Old Jul 3, 2008 | 02:00 PM
  #3  
305redbird's Avatar
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From: carpentersville illinois
Car: 1986 trans am
Engine: 305 5.0 tpi
Transmission: 700r4
Axle/Gears: 3.23 9 bolt rear end
Re: questions about glasspacks

ok ill check it out thanks
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Old Jul 3, 2008 | 10:10 PM
  #4  
black89ws6's Avatar
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Joined: Dec 2001
Posts: 456
Likes: 4
From: Concordia, MO, USA
Car: 89 Formula, WS6
Engine: LB9/peanut cam :(
Transmission: 700R4
Re: questions about glasspacks

Originally Posted by 305redbird
im thinking thrush glasspacks,
The idea is not just to sound loud, but to sound loud and GOOD. Glasspacks not only sound like crap, but they have been shown to actually reduce horsepower.
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Old Jul 3, 2008 | 11:06 PM
  #5  
punkdude908's Avatar
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Joined: Apr 2007
Posts: 394
Likes: 1
From: Huntington, NY
Car: 1983 Pontiac Firebird
Engine: LG4 305ci 4bbl
Transmission: 700r4
Axle/Gears: 10-bolt open diff.
Re: questions about glasspacks

http://www.youtube.com/watch?v=3YjXNMVbWMw

i have a thrush glasspack 2.5" in/ out. i think it sounds great.

as far as glasspacks sounding like cr@p- only the cheap-o ones sound like crap. that's why they're cheap. the thrush glasspacks aren't that much more expensive, but the quality and sound is much better.

chambered exhaust is a completely different sound. personally, its not my thing. seen a bunch of 3rd and 4th gens with that setup.

bottom line- do your research and figure out which you like best. the chambered mufflers are more expensive, but it's worth it if it's what you like
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Old Jul 3, 2008 | 11:31 PM
  #6  
slow_90firebird's Avatar
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Joined: Jul 2007
Posts: 1,461
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: questions about glasspacks

A straight-thru glasspack isnt gonna reduce HP any more than any other straight-thru muffler like a magnaflow. The only difference is the packing, the quality of metal, and the shape of the baffle scoops inside.

Its mufflers like a flowmaster, that use chambers, that will start raking up the backpressure.
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Old Jul 4, 2008 | 12:44 AM
  #7  
black89ws6's Avatar
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Joined: Dec 2001
Posts: 456
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From: Concordia, MO, USA
Car: 89 Formula, WS6
Engine: LB9/peanut cam :(
Transmission: 700R4
Re: questions about glasspacks

Originally Posted by punkdude908
That's impressive. That's the first glasspack I've ever seen that sounded like a real muffler, and not a piece of crap.
I suppose I stand corrected.
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Old Jul 7, 2008 | 07:37 PM
  #8  
Rayzor32's Avatar
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From: BUFFALO, NY
Car: '89 IROC-Z
Engine: 355
Transmission: 700r4 edge 3000 stall
Axle/Gears: 9-bolt 3.73
Re: questions about glasspacks

glasspacks have been kicking *** for decades i dont know why everyone hates on them, same people that hate on 15" wheels, white letter tires and air shocks it seems
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Old Jul 7, 2008 | 09:30 PM
  #9  
stroker_SS's Avatar
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Joined: Nov 2005
Posts: 670
Likes: 1
From: Michigan
Car: 1984 Camaro Berlinetta
Engine: 355
Transmission: Th-350
Axle/Gears: 3.23
Re: questions about glasspacks

Originally Posted by Rayzor32
glasspacks have been kicking *** for decades i dont know why everyone hates on them, same people that hate on 15" wheels, white letter tires and air shocks it seems
Haha, i've got 15" wheels and white letter tires, but no airshocks, my car sits high enough in the rear as it is. Looks good to me though.
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Old Jul 7, 2008 | 09:51 PM
  #10  
Rayzor32's Avatar
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From: BUFFALO, NY
Car: '89 IROC-Z
Engine: 355
Transmission: 700r4 edge 3000 stall
Axle/Gears: 9-bolt 3.73
Re: questions about glasspacks

not meaning to hijack this, but u got ne pics? planning on getting some wheels soon, thinking outlaw II's, centerlines, pro stars or M/T et's. (probably outlaw IIs with radial t/a's, the cheap route)
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Old Jul 7, 2008 | 09:56 PM
  #11  
//<86TA>\\'s Avatar
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Joined: Aug 2006
Posts: 12,812
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: questions about glasspacks

Originally Posted by Rayzor32
...and air shocks ...
well they just suck, period, and can cause major damage to the car
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Old Jul 7, 2008 | 09:59 PM
  #12  
Rayzor32's Avatar
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From: BUFFALO, NY
Car: '89 IROC-Z
Engine: 355
Transmission: 700r4 edge 3000 stall
Axle/Gears: 9-bolt 3.73
Re: questions about glasspacks

yeah
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Old Jul 8, 2008 | 02:21 PM
  #13  
Fazt87Vert's Avatar
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Re: questions about glasspacks

I have loved my Flowmaster catback while deleting the cat at the same time sounds great
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Old Jul 10, 2008 | 09:56 PM
  #14  
GuitarJunki17's Avatar
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From: Hamilton
Car: 1990 IROCZ Camaro
Engine: 350 4bbl, 200cc Heads, 270hr Cam
Transmission: 700R4 w/ Trans-Go shift kit.
Axle/Gears: GM 10 bolt Posi
Re: questions about glasspacks

For the record, I just got my exhaust finished. That chambered resonator from classicchambered.com sounds amazing in front of a summit turbo series muffler.
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