Flowmaster Questions
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Member
Joined: Feb 2001
Posts: 422
Likes: 0
From: Rockford,IL, Unitied States
Car: 1991 Pontiac Firebird
Engine: 305
Transmission: 700R
Flowmaster Questions
Just a couple of Flowemaster Questions.
IT SAYS ON THE FLOWMASTER WEBSITE THAT THE
40 SERIES MUFFLER HAS THE OLDER MUSCLE CAR
TONE TO IT, YA KNOW././ THE DEEP RUMBLE ETC.
BUTTTTT HOWEVER.. THE 80 SERIES MUFFLER IS THE ONE THAT IS MORE DESIGNED FOR OUR FIREBIRDS AND CAMAROS..
SOMEONE ELSE ON HERE ASKED ON A PREVIOUS POST WILL THE 40 SERIES WORK ON OUR CARS.. AND REALLY DIDNT GET A DIRECT ANSWER.
I DIDNT SEE A 40 SERIES WITH TWO OUTS FROM ONE MUFFLER SET UP LIKE THE 80 SERIES IS TO WORK FOR OUR CARS..
IS THERE ONE? AND/OR CAN YOU HAVE TWO 40 SERIES MUFFLERS AND RUN TRUE DUALS BACK OR DO WE NOT HAVE ENOUGH CLEARANCE ON OUR CARS TO RUN TRUE DUALS?
(2) SHOULD I JUST HOLLOW OUT MY EXISTING CAT OR GET A AFTERMARKET PERFORMANCE CAT?? ARE THEY VERY EXPENSIVE????
IT SAYS ON THE FLOWMASTER WEBSITE THAT THE
40 SERIES MUFFLER HAS THE OLDER MUSCLE CAR
TONE TO IT, YA KNOW././ THE DEEP RUMBLE ETC.
BUTTTTT HOWEVER.. THE 80 SERIES MUFFLER IS THE ONE THAT IS MORE DESIGNED FOR OUR FIREBIRDS AND CAMAROS..
SOMEONE ELSE ON HERE ASKED ON A PREVIOUS POST WILL THE 40 SERIES WORK ON OUR CARS.. AND REALLY DIDNT GET A DIRECT ANSWER.
I DIDNT SEE A 40 SERIES WITH TWO OUTS FROM ONE MUFFLER SET UP LIKE THE 80 SERIES IS TO WORK FOR OUR CARS..
IS THERE ONE? AND/OR CAN YOU HAVE TWO 40 SERIES MUFFLERS AND RUN TRUE DUALS BACK OR DO WE NOT HAVE ENOUGH CLEARANCE ON OUR CARS TO RUN TRUE DUALS?
(2) SHOULD I JUST HOLLOW OUT MY EXISTING CAT OR GET A AFTERMARKET PERFORMANCE CAT?? ARE THEY VERY EXPENSIVE????
Member
Joined: Mar 2001
Posts: 205
Likes: 0
From: Billings, Mt
As for a cat, if you are redoing your entire exhaust you can get a 14" 3"diameter catco for 45...the 40 series, again, they dont make one that can be mounted in our OE location but as i told the previous questioner, if you really want the 40 im positive you can get a muffer shop to make it work, for a price, and hell, you might get lucky and it fits easy i dont really know for sure never tried, but if you want to be sure that it will fit, go with the 80. true duals...ive heard different deffinitions of this and if you mean true duals as in two pipes, very possible if you run them side by side...if you mean two pipes straight back from the headers...all sorts of clearance problems, look under your car and you will see what i mean...hope this helped a little
Junior Member
Joined: Jul 2001
Posts: 70
Likes: 0
From: ct
you can use a 40 series flowmaster but youll only have one tail pipe. take the origan muffler of and replace it with a 40 series of the same pipe diameter then have your local exhaust shop bend a tail pipe for it
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91 Z28 slp headers adj reg accell cap rotor coil comp cam roller
random tech cats flowmaster catback
new motor almsot in
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91 Z28 slp headers adj reg accell cap rotor coil comp cam roller
random tech cats flowmaster catback
new motor almsot in
Member
Joined: Jul 2001
Posts: 210
Likes: 0
From: LaGrange KY
Car: 87 GTA
Engine: 355 Chevy
Transmission: T-56
<font face="Verdana, Arial" size="2">Originally posted by tacoboy:
As for a cat, if you are redoing your entire exhaust you can get a 14" 3"diameter catco for 45...the 40 series, again, they dont make one that can be mounted in our OE location but as i told the previous questioner, if you really want the 40 im positive you can get a muffer shop to make it work, for a price, and hell, you might get lucky and it fits easy i dont really know for sure never tried, but if you want to be sure that it will fit, go with the 80. true duals...ive heard different deffinitions of this and if you mean true duals as in two pipes, very possible if you run them side by side...if you mean two pipes straight back from the headers...all sorts of clearance problems, look under your car and you will see what i mean...hope this helped a little</font>
As for a cat, if you are redoing your entire exhaust you can get a 14" 3"diameter catco for 45...the 40 series, again, they dont make one that can be mounted in our OE location but as i told the previous questioner, if you really want the 40 im positive you can get a muffer shop to make it work, for a price, and hell, you might get lucky and it fits easy i dont really know for sure never tried, but if you want to be sure that it will fit, go with the 80. true duals...ive heard different deffinitions of this and if you mean true duals as in two pipes, very possible if you run them side by side...if you mean two pipes straight back from the headers...all sorts of clearance problems, look under your car and you will see what i mean...hope this helped a little</font>
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1987 GTA 355, carbureted, TFS heads(non G2), 6-speed, McLeod clutch, 11.3:1, dual 3" flowmaster 2-chamber exhaust with NO tailpipes, 98 z-28 wheels, soon to be replacing weak 10 bolt with 12-bolt...gettin tired of breakin axles....
...Whatever turns your tires.....
Member
Joined: Mar 2001
Posts: 205
Likes: 0
From: Billings, Mt
well that is good, i wonder, did they have different underbodies (hmmm whatever this is called, the metal under the car that keeps everything inside inside, maybe you know what i mean) on different thirdgens, because on mine my drivers side everything hangs down very low as it is...
Member
Joined: Mar 2001
Posts: 111
Likes: 0
From experience I have to say that the 80 series has a nice deep rumble to it. It is pretty loud, but not quite loud enough for me. I can highly recommend it though.
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1988 Carmaro RS
Bustit.Org
To see pictures of my Camaro, go to Bustit.Org and click on the About me page!
GTS Black outs for front
GTS Black outs for back
LeBra bra
K & N air filter
Flowmaster 80 series with Edelbrock Chrome tips
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1988 Carmaro RS
Bustit.Org
To see pictures of my Camaro, go to Bustit.Org and click on the About me page!
GTS Black outs for front
GTS Black outs for back
LeBra bra
K & N air filter
Flowmaster 80 series with Edelbrock Chrome tips
Member
Joined: Jul 2001
Posts: 210
Likes: 0
From: LaGrange KY
Car: 87 GTA
Engine: 355 Chevy
Transmission: T-56
<font face="Verdana, Arial" size="2">Originally posted by tacoboy:
well that is good, i wonder, did they have different underbodies (hmmm whatever this is called, the metal under the car that keeps everything inside inside, maybe you know what i mean) on different thirdgens, because on mine my drivers side everything hangs down very low as it is...</font>
well that is good, i wonder, did they have different underbodies (hmmm whatever this is called, the metal under the car that keeps everything inside inside, maybe you know what i mean) on different thirdgens, because on mine my drivers side everything hangs down very low as it is...</font>
------------------
1987 GTA 355, carbureted, TFS heads(non G2), 6-speed, McLeod clutch, 11.3:1, dual 3" flowmaster 2-chamber exhaust with NO tailpipes, 98 z-28 wheels, soon to be replacing weak 10 bolt with 12-bolt...gettin tired of breakin axles....
...Whatever turns your tires.....
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Senior Member
Joined: May 2001
Posts: 646
Likes: 0
From: NH
yeah the 40 will fit but only one tail pipe.. and the dual outlet 40 is for trucks (got that on mine) 
the 80 is nice but nowheres near as loud as a 40
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1988 Sport Coupe 305 TBI
K&N
Flowmaster exhaust
Daily driver:
1988 K1500 5.7 4x4 shortbed flowmaster cat-back gutted cat.
AOL: RyanNH84
the 80 is nice but nowheres near as loud as a 40------------------
1988 Sport Coupe 305 TBI
K&N
Flowmaster exhaust
Daily driver:
1988 K1500 5.7 4x4 shortbed flowmaster cat-back gutted cat.
AOL: RyanNH84
Junior Member
Joined: Aug 2001
Posts: 55
Likes: 0
From: Severn,MD
You're wrong. i have a 40 series flowmaster on my car now and i've got the dual tailpipes. It IS the crossflow style and yes, it does have that musclecar tone to it. Sounds sweeeeeeet.
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'88 CAMARO 305
OPEN AIR ELEMENT
FLOWMASTER CAT BACK EXHAUST
COMPUTER CHIP
HYPERTECH 160* THERMO.
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'88 CAMARO 305
OPEN AIR ELEMENT
FLOWMASTER CAT BACK EXHAUST
COMPUTER CHIP
HYPERTECH 160* THERMO.
Banned
Joined: Oct 1999
Posts: 1,147
Likes: 0
From: avondale, az
Car: 86 IROC-Z
Engine: 406
Transmission: 700R4
i have 40 series as well with a pipe on each side. i was going to go with Borla for my car *putting in a 406* but after reviewing the flow #'s with Borla, Flowmaster and Dynomax and all the others.. Borlas were just BARELY better then flowmasters. so im going to just go with a new 40 Series muffler for less then $100 vs Borla's for $525 *jegs/summit*
Senior Member
Joined: Dec 2000
Posts: 640
Likes: 0
From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Go with true dual exhuast , it can be done.
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383 86 Camaro Z28
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,3.42 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.
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383 86 Camaro Z28
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,3.42 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.
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