What is the difference in performance/sound between a 2-chamber and a 3-chamber Flowmaster muffler? Also, what series Flowmaster muffler is the one listed in Summit (p.n. FLO-43083) - 1982-97 Camaro/Firebird - 3" offset inlet/dual 2.5" outlets. Finally, what are the differences in sound/performance between the different series numbers. Are any of them real loud? Any help would be much appreciated. Thanks.

 

I have several different flowmasters and im not sure about the exaact one u are tlking about. However for best sound and performance use a single inlet and single outlet 3 chamber. The chambers give u the sound and if your car is stock or mildly hopped up go no less than a two chamber. The chambers give the sound and they restrict cuz u have to have some back pressure for the car to run at its peak.
The muffler im talking about is about the same used on the 5.0 mustangs and it sounds great on my car. Im running this muffler 3 in. inlet and outlet with headers. If someone recommends a crossflow which is factory style dont get it it doesnt flow as good and it gives bad rattle back at higher rpm's when you back off the gas. Sorry this is a little long but maybe it helps clear up your quest.

 

Anybody else know about that 82-97 F-Body muffler? What about the difference in sound between the different series Flowmasters? Thanks.

 

Use the search function under exhaust, TPI, and general. There's a lot of info out there! Also the 3 chamber mufflers will produce more power and are quieter than the same size pipe 2 chamber - that's from personal experience and based on "shoot-out" articles.

Also this may help a little - http://www.flowmastermufflers.com/

 

Whatever you do don't get the 80 series. It gives good increase in power, but the sound you may not like. It is a very tinny hollow sound at most rpm's. I'm getting rid of mine after this year's hibernation.

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http://www.members.tripod.com/~btessier

88 GTA
L98 350
700R4
3:27 axle
MODS,
Edelbrock TES headers, 2.5" straight pipe, Flowmaster 80 series, K&N filter, Accel 8.8mm wires, Bosch Platinum plugs, Wells cap and rotor button, Wells ignition module, MAF screens removed, Hypertech TB air foil, Thermomaster stage II chip, 180* Powerstat, Hypertech cool fan switch, B&M shift kit, B&M power clutch pack, B&M servo, GM fuel filter.

[This message has been edited by speed88 (edited November 28, 2000).]

 

88, are you running a cat? That could be the cause of the crappy sound. Is the 80 series loud to the point that it will draw attention to cops? Thanks.

 

Yes, some1 said a while ago that they had an L98 with no converter and they didn't like the sound and said the same thing 88, so they put a High Flow on and then it sounded really nice and didn't have the sound you are talking about with the converter on.

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

40 series is the loudest...can be single in/dual out if you want
80 series is quiter but still loud as hell
single in/dual out too.

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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 3/4 super comp long tubes, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit
MacEwen Motorsports White Gauge Overlays
K&N Filter Charger (wooohooo)
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

 

No Camaro I am not running a converter. Yes this may be the cause of the sound that I don't like, however, the large performance gain that I noticed once I took it off will keep me from ever putting one back on. And the only time I draw attention to the cops is when I fly by and all they see is a black streak!! My only concern is that when I install my headers in the spring will I lose torque because I have no converter?? Anyone experience that??

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88 GTA
L98 350
700R4
3:27 axle
MODS,
Edelbrock TES headers, 2.5" straight pipe, Flowmaster 80 series, K&N filter, Accel 8.8mm wires, Bosch Platinum plugs, Wells cap and rotor button, Wells ignition module, MAF screens removed, Hypertech TB air foil, Thermomaster stage II chip, 180* Powerstat, Hypertech cool fan switch, B&M shift kit, B&M power clutch pack, B&M servo, GM fuel filter.
Veiw MY CAR at:
http://www.members.tripod.com/~btessier

[This message has been edited by speed88 (edited November 29, 2000).]

 

speed88 i dont think u will loose much torque with the 350 and headers but u will have to tune the car accordingly. U might wanna put a high flo converter back on when u get the headers. u do need some back pressure-Mike

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1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
-------------------------
system: 2 10" MTX thunder 2000 in a Professionally done custom bandpass box.
Blaupunkt CD player
Blaupunkt 4x6 and 6x9
600 watt rockford fosgate 4.6 amp

http://members.aol.com/j007golden/Mikey89.html

 

Thank's for the advice 8T9.

------------------
Veiw MY CAR at:
http://www.members.tripod.com/~btessier

88 GTA
L98 350
700R4
3:27 axle
MODS,
Edelbrock TES headers, 2.5" straight pipe, Flowmaster 80 series, K&N filter, Accel 8.8mm wires, Bosch Platinum plugs, Wells cap and rotor button, Wells ignition module, MAF screens removed, Hypertech TB air foil, Thermomaster stage II chip, 180* Powerstat, Hypertech cool fan switch, B&M shift kit, B&M power clutch pack, B&M servo, GM fuel filter.

 

88, a High Flow converter, not a stock converter, isn't going to do much to your car, its almost the same as not having 1, and there are many more advantages to it, such as sound and emissions.

------------------
Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

Thanks for the info IROC, I will keep that in mind.

------------------
Veiw MY CAR at:
http://www.members.tripod.com/~btessier

88 GTA
L98 350
700R4
3:27 axle
MODS,
Edelbrock TES headers, 2.5" straight pipe, Flowmaster 80 series, K&N filter, Accel 8.8mm wires, Bosch Platinum plugs, Wells cap and rotor button, Wells ignition module, MAF screens removed, Hypertech TB air foil, Thermomaster stage II chip, 180* Powerstat, Hypertech cool fan switch, B&M shift kit, B&M power clutch pack, B&M servo, GM fuel filter.