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Chambered Muffler

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Old Apr 5, 2005 | 02:12 PM
  #1  
FastBack's Avatar
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
Chambered Muffler

whats the best way to get the old school muscle car sound outta my 3rd gen. it sounds so wimpy right now (stock). i heard the key to that sounds is chambered exhaust. is this true? and if so where can i find them. i've seen them on summit, maybe i'm totally going in the wrong direction. if so, someone please set me straight. i want a fairly cheap, good sounding exhaust (but doesn't everybody). thanks!
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Old Apr 5, 2005 | 06:41 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I sure wish somebody would define what "the old school muscle car sound" really is.

In my 30+ years of following this hobby, what that meant is either a deep-throated sound at idle and low RPM power due to a low-duration cam and restrictive exhaust that killed real-world performance, or a pair of glass packs that made a lot of noise but were still restrictive and still killed real-world performance. Either way, who cares what it "sounds" like? It's performance that matters.

Loud exhaust for daily commutes, late night returning to the neighborhood after an evening at the drag strip, or long interstate cruises just isn't very practical. What should really drive the decision is flow vs. noise control. For that, from the information I've been able to gather, it's hard to beat Borla and Dynomax. Too bad my budget doesn't support either.
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Old Apr 6, 2005 | 04:11 PM
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From: Oklahoma
Car: 1991 Camaro Z28
Engine: L98 5.7 V8 TPI
Transmission: 700R4
http://www.gmmginc.net/html/chamberedexhaust.html

Not really cheap but its an option. Ill get a sound/video clip as soon as mine goes on. Its been sitting in the living room for over 2 weeks now.
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Old Apr 6, 2005 | 04:22 PM
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From: Clearfield,Utah
Car: 1987 IROC, 1989 IROC
Engine: built 305, stock 305 tpi
Transmission: Corvette 700r4, t-5
Axle/Gears: 4.10 posi, 3.08 posi
Hooker!!!! docile at idle but screams at WOT and decently noisey while crusing.
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Old Apr 6, 2005 | 04:58 PM
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
i want that deep throaty rumble at idle and a good sound throughout the powerband. what about flowmasters?
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Old Apr 6, 2005 | 05:53 PM
  #6  
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
Check out bullet mufflers, they're cheap and sound nice.

Deep and bassy at low rpms (car alarms are very easy to set off, even at 1000 rpm moving through a parking lot) and it SCREEEEAAAMMMSSSS at high rpms. It sounds like a nascar, seriously. At 6K RPM it sounds EVIL!

And this was WITHOUT headers. Can't wait to hear it once I get my pacesetters on.
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Old Apr 8, 2005 | 07:51 PM
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From: Ft Laud, FL
Car: '76 Vette
Engine: '95 LT1
Transmission: '95 4L60e
Check out these Chambered "Powersticks" from Classic Chambered..

http://www.classicchambered.com/classic/sounds.html

Unfortunately, no CHEVY clips, but these give you an idea of what they sound like.
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Old Apr 8, 2005 | 08:27 PM
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From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Flowmaster gives a muscular sound on almost anything and is usually the loudest.
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Old Apr 9, 2005 | 12:11 AM
  #9  
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
since my formula only have single exhaust (dual output muffler) how do i get two powersticks/glasspacks...etc to come out the rear w/o converting to dual from the heads back?
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Old Apr 9, 2005 | 10:51 AM
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From: Roselle IL
Originally posted by dr76
Check out these Chambered "Powersticks" from Classic Chambered..

http://www.classicchambered.com/classic/sounds.html

Unfortunately, no CHEVY clips, but these give you an idea of what they sound like.
OMG!! those sound incredible!! if i had the money, id defently get those!
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Old Apr 9, 2005 | 12:15 PM
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From: Ft Laud, FL
Car: '76 Vette
Engine: '95 LT1
Transmission: '95 4L60e
I'm going to take some measurements this weekend to see which length "Powerstick" fits best (yeah, of course the shortest will fit best, but according to Eric @ Classic Chambered, the longer the better, since more "tuning" of the sound takes place) There's only a few bucks difference in the sizes anyway, so he's not trying to make some quick cash by recommending the longest/most expensive.

For the SB2530 (2-1/2", 30" total lenth) it's approx $60.00/ea., and for a pair to ship from Mich to Fla $14.

The smaller ones were about $3 or so cheaper.

* Don't bother clicking on their "Vendors" links...they take forever to respond (or don't!) Go directly to Classic Chambered for any inquiries/price quotes.

LOVE that throaty gurgle W/O the resonance!
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Old Apr 9, 2005 | 12:26 PM
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From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
Quick6, that exhuat has so many uneccessary bends and extra piping, the most practical way to get dual tips from a y-pipe is something like this...

and this will cost you about half the price to get done at a quality custom exhaust shop... mine was 330 including the muffler.

Last edited by IceManRS305; Apr 9, 2005 at 12:29 PM.
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Old Apr 9, 2005 | 04:36 PM
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
for a sound clip see sig
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Old Apr 11, 2005 | 07:25 PM
  #14  
FastBack's Avatar
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
it was only 330 to run 3in from the cat back, with the muffler and all. wow thats pretty good. what about tips on the end? you got any pics? thanks
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Old Apr 18, 2005 | 02:34 PM
  #15  
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From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
yep and the tips are about 20-30 a peice depending on what you want. i dont have pics right now but i reallly would like to show you guys how it looks. i will post them soon hopefully
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Old Apr 18, 2005 | 08:09 PM
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
Originally posted by IceManRS305
Quick6, that exhuat has so many uneccessary bends and extra piping, the most practical way to get dual tips from a y-pipe is something like this...

and this will cost you about half the price to get done at a quality custom exhaust shop... mine was 330 including the muffler.
That's my exact setup. $190 including muffler
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Old Apr 18, 2005 | 09:17 PM
  #17  
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From: hamilton nj
Car: 91 Camaro RS
Engine: 350 bored .030 carbed
Transmission: t5
Axle/Gears: 3.08
yea well mufflex will pull the pennys outta ya real quick, shouldnt have taken it there, dont really like there customer service... and their prices suck.... but on the brighter side i got a quality job that will last a long time
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Old Apr 20, 2005 | 09:55 PM
  #18  
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
The key to a muscle car sound, is a brawny engine with a big cam. Solid lifters help too
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