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#1 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Which Muffler?? flowmaster or magnaflow
heres the question. I am going to put on a new exhaust system and need to know which muffler to buy. I am stuck between the magnaflow and flow master 40 series. I have heard the flow masters and they seem to sound pretty good but they also resinate at the rpms that I mostly turn. I have not heard the magnaflows. Whats the best one for me? I want aggresive sound but not to much inside the cab. A little loud in the cab is ok.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#2 |
Senior Member
![]() Join Date: Jun 2002
Location: Kansas
Posts: 702
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Re: Which Muffler?? flowmaster or magnaflow
I have had 40 series flow masters, sound good for the first week or so, then they are just anoying. I just finished up my latest project & put 2.5" magnaflows with 2.25 tubes all the way out the back & I love the sound. Very quiet until you put your foot in it. You wont be disappointed with the Magnaflows.
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The kid Build threads: 51 Jimmy http://67-72chevytrucks.com/vboard/s...d.php?t=154951 http://67-72chevytrucks.com/vboard/s...d.php?t=219902 http://www.classictrucks.com/feature...uck/index.html 68 C10 http://67-72chevytrucks.com/vboard/s...ad.php?t=50348 |
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#3 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Which Muffler?? flowmaster or magnaflow
Thanks, Do they have a good sound at idle?
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#4 |
Registered User
Join Date: Sep 2006
Location: hermiston, OR
Posts: 10
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Re: Which Muffler?? flowmaster or magnaflow
i have a flowmaster 40 series on my daily driver and love the sound of it. ive had it for about 2 months now. ive ran magna flow before and was not impressed at all.
i was watching one of those car building shows on tv (dont remember which one) and they were doing a flow test between the flowmaster and the new cherry bombs (not the old thru and thru ones) they are comming out with a chambered one just like a flowmaster or magnaflow, except the new cherry bomb flowed 3 times as much as the flowmaster.
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your like a prize mouth bass, i dont know weather to eat you or mount you. 1978 chevy stepside, 2002 dodge crew cab AMSOIL DEALER |
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#5 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Which Muffler?? flowmaster or magnaflow
my truck is a longbed so I know that will make a little bit of difference but not much.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#6 |
Registered User
Join Date: Mar 2007
Location: Grundy Virginia
Posts: 385
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Re: Which Muffler?? flowmaster or magnaflow
flowmasters.....have had mine for about 9months and they still sound deep and aggresive love the sound.....magnaflows are nice too just prefer the flowmaster sound
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"OLE BLUE" Goodwrench 350, 5speed, Tilt, PS, PB, "some guys got into cars for money or girls but i got into cars because of the cars" -Jay Leno |
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#7 |
Junior Member
Join Date: Jun 2006
Location: pomona ca
Posts: 187
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Re: Which Muffler?? flowmaster or magnaflow
i have had both and have to say i prefer the 40 series flowmasters, the magnaflows just seemed to have a flappy sound to them and the flowmasters are just tuned better it seems, well just my 2 cents
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67 short bed fleetside/1997 c1500 exteded cab/ 2004 accord/87 c10silverado 350 od tbi |
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#8 |
Senior Member
Join Date: Nov 2003
Location: Calgary Alberta
Posts: 1,936
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Re: Which Muffler?? flowmaster or magnaflow
Have them both, Mags sound good on a big block. I still prefer the flowmaster, have them on a few trucks.
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67- 72 Parts collecter Last edited by classicchev; 07-04-2007 at 12:16 AM. |
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#9 |
Commander Taco Bello
Join Date: Sep 2006
Location: Des Moines, Iowa
Posts: 2,232
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Re: Which Muffler?? flowmaster or magnaflow
i really like the dynomax setup i'm running. shorty headers into 3" pipe that goes back to the trailing arm x member, then 2.5" from there into the dynomax mufflers... 2.5" all the way back to the bumper.
makes my stock 283 sound like it has an RV cam in it at idle, fairly quite, but then when i hit the loud stick, things start to sound nice. nice and low pitched throughout, with a slight tinny sound at idle. love it. |
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#10 |
its just $$$$$
Join Date: Jul 2003
Location: OK
Posts: 2,078
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Re: Which Muffler?? flowmaster or magnaflow
I have flowmasters on the 82 and hate them, I have magnaflow on my GTO and love them.
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#11 |
GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: Which Muffler?? flowmaster or magnaflow
The more I read about Cherry Bomb's NEW NOT glasspack style mufflers the more I like them. Worth checking out IMO.
Their new VOTEX mufflers are what I'm talking about: HERE'S THERE SITE LINK SOUNDS, DYNO, PRODUCT AND MORE!!! rj22... ![]() |
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#12 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Which Muffler?? flowmaster or magnaflow
Thanks for the input guys, I'm still looking and trying to make up my mind.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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#13 |
Registered User
Join Date: Dec 2006
Location: Ontario
Posts: 73
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Re: Which Muffler?? flowmaster or magnaflow
I have been told the further back the better the sound. Maybe thats why so many old vettes sound good, mufflers are right at the back bumper.
Friend who builds custom cars had 40's flowmasters said the cops pulled him over all the time, went to 50 and he doesnt get pulled over, quieter but still sounds good and better when his foot is into it, not that we do that kind of stuff anymore. Warren |
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#14 |
Registered User
Join Date: Mar 2007
Location: Springfield, MO
Posts: 45
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Re: Which Muffler?? flowmaster or magnaflow
I know there are only two options in your question, but I would go with Hooker AeroChambers. They are a totally different sound than either of the mufflers mentioned. They have a real mellow rumbly tone in the low rpm's, but when you get on the gas, they open up with a throaty growl!!!!!!!!!!!!!!!!! Okay, so obviously I am biased...
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#15 |
Old Skool Club
![]() Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: Which Muffler?? flowmaster or magnaflow
I have 40-series Flowmasters on my '69. Been there for six+ years. Sound good. No balance tube, though....so it's to be done. Mufflers directly beneath the cab...some resonance, but not too bad. Gonna redo the exhaust system and relocate the mufflers behind the cab..
The '96 GMC V-6 has a single exhaust, with a flowmaster wannabe. It's behind the cab (barely) and has an annoying resonance. I think I'm gonna go with Cherry Bombs and have dual system fabricated. Truck doesn't sound bad, better than stock and not like a V-6 when you first hear it.
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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#16 |
Registered User
Join Date: Jun 2007
Location: ottawa
Posts: 4
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Re: Which Muffler?? flowmaster or magnaflow
I'm new to this seen but, when I had to replace the exhaust on my beast Dynamax was recommended to me.
I have dual Dynamax Super Turbos on now and love the sound. Not loud in the cab but, my wife can hear me a couple of blocks away. Last edited by slowboy72; 07-04-2007 at 11:42 AM. |
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#17 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,647
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Re: Which Muffler?? flowmaster or magnaflow
No personal knowledge of Magnaflows, but having heard quite a few trucks with Flowmasters -- eh, I know a lot of guys like 'em, but they are just not my cup-o-tea. Just seems to be something hollow, echo-chamber about their sound that doesn't seem right to me. I prefer a rich, deep burble... Okay, I admit it, I'm kinda old and a bit backwoods, but I like a decent mellow (not loud) glasspack sound. Currently running old, burned-out 30" blanks, and will likely replace them with new 30" blanks.
And having owned two mid-sixties Sting Rays, I agree with Warren. They sounded fantastic with the mufflers at the very back of the car... ![]()
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#18 |
Registered User
Join Date: Jun 2007
Location: Texas
Posts: 16
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Re: Which Muffler?? flowmaster or magnaflow
I prefer magnaflow I have the on my daily driver and i love them, not to mention they are stainless steel and have a life time warranty on them as well, just my .2 cents. jared
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#19 |
Registered User
Join Date: Jun 2007
Location: mississippi
Posts: 181
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Re: Which Muffler?? flowmaster or magnaflow
just had to chime in on this one , My dad put 2 1/2 straight pipes on a big block ford 3/4 ton truck.....sounds beautiful. you'd swear it had mufflers on it at normal driving speeds and at idle. but put your foot in it and it hollers at ya!
i'm considering the same on mine |
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#20 |
Keepin an eye out
Join Date: Feb 2003
Location: So.Cal
Posts: 3,921
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Re: Which Muffler?? flowmaster or magnaflow
I have Flowmaster 40's on my truck, if it was a daily driver I woud change them as they are loud.
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1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 |
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#21 |
Registered User
Join Date: Jun 2007
Location: mississippi
Posts: 181
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Re: Which Muffler?? flowmaster or magnaflow
anybody ever seen or have dual chamber exhaust? i'm told they are incredible sounding .
the basic concept is that each pipe splits into two to sepperate pipes of different size chambers that are larger than the original pipe, or into two different length glasspacks, then go back to single pipes out the rear. the effect is supposed to create completely different exahaust note depending on how much you put your foot on the pedal. I'm told you can go from rumbly low tone at normal rpm's and when you wind it up it can sound like a stock car. |
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#22 |
Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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Re: Which Muffler?? flowmaster or magnaflow
I have Delta Flow 40's on my truck, dumped above the rear axle (no turndowns or anything, they just end). It sounds really good, but would get pretty annoying for daily driving. I haven't drove my truck daily since I was 19, and it was great then, but I think it would get pretty old now to have to put up with every day. I had turndowns on them for awhile and it was quite a bit quieter, and had more of a tuned sound. It doesn't sound hollow at all though....just really deep and throaty.
Here is a sound clip/vid: http://www.youtube.com/watch?v=fdmirrfshAg
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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#23 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Which Muffler?? flowmaster or magnaflow
Mufflers are like anything else. It's all about preference. I personally like Flowmasters. I like the tin-can type sound at idle. I prefer the Super 40's or the 50 series over the original 40's though. They have a deeper, throatier sound. The 50 series Delta Flows on my 86 have a nice deep, mellow tone, but they drone really bad in the cab at cruising speeds. Part of this may be due to the fact I have NO insulation or sound deadening material in the cab. It's a plain jane with a rubber floor mat and no A/C.
What I've heard of the Magnaflows, hey just seem too raspy and high pitched to me. My dad had a set of Dynomax turbos on his 83 Elcamino when he first put the 355 with an RV cam. It sounded great inside and out. He later changed them(can't remember why) to a set of 40 series Delta Flows. I can't say I liked the sound any better or worse than the Dynomax set, but dad said he could tell a big difference in torque. He had better throttle response from the Flowmasters! He said it just felt more responsive after changing them. I had a set of the cheap IMCO turbos on my 68 with 2.25" pipes. They sounded decent, but it was never the sound I wanted. They had a decent throaty rumble at idle but they were a bit raspy at hard throttle. Check out the videos in my sig for sounds. The Elky and the Monte Carlo both have 40 series Delta Flow Flowmasters. My black truck has the IMCO turbos. The white truck has old wore out glasspacks that exit before the rear axle. (They were just cut off) I will try to make videos today or tomorrow of my 86 with 50 series Delta Flows and my brothers 83 with original 40 series(it's LOUD).
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Last edited by 68Stepbed; 07-05-2007 at 07:18 AM. |
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#24 |
2WD Jimmy
![]() Join Date: Mar 2005
Location: Davis County, Utah
Posts: 2,564
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Re: Which Muffler?? flowmaster or magnaflow
Im surprised no one has mentioned Spintech. I had custom headers made for the BB Jimmy by Lemons. He says guys are ordering Spintechs 9 times out of ten over flowmasters. If Dan Lemons says that, its good enough for me. You should see the serious cars that come out of that shop.
Tom |
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#25 |
Senior Member
![]() Join Date: Oct 2005
Location: south carolina
Posts: 658
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Re: Which Muffler?? flowmaster or magnaflow
Thanks for all the input guys. Alot of thought went into this and have been thinking about which one to get for about a year now, I finally made my mind up and went with the flows. I had to think back on how my 70 lwb sounded with them before it caught on fire and as I remembered I did like the way it sounded so I am going to be putting them on real soon. Along with my A/C, all new hoses from classic parts and all new front end ball joints tie rod ends etc.etc. Then hopefully I will be doing some body work and sprayin some paint. I cant wait. People look at me funny when they see the different color door and latex paint brush strokes on the sides (form the previous owner). I'm finally getting to do something with the old girl. Its nice not having car payments.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod. ![]() |
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