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#1 |
Registered User
![]() Join Date: Aug 2013
Location: Va
Posts: 165
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mufflers
Can anyone tell me what the quietest flow master with good back pressure is I can get? I like flow master until you get on t and then u can't hear inside the cab. I used to have 40 series and had to change them. I have magna flow but they aren't performing well at all.
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#2 |
Hand Crafted C-10
![]() Join Date: Aug 2006
Location: Burien, WA
Posts: 5,180
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Re: mufflers
I have the 50 Series Delta Flow, 2 1/4" dual exhaust w/ H-pipe behind a LJ 327.
Very happy with sound & performance. |
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#3 |
Registered User
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
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Re: mufflers
Hi 71SWB, a brand of muffler that you don't hear of much is the brand "corsa". They take the sound waves and turn it against itself. It is a straight through design so basically no resistance. I've never seen a post on opinions of sound quality, etc. I run gm factory stainless stock mufflers being fed by a 5.3 ls through shorty headers and no drone, pretty quiet until i get on it and then it sings. I like it because i feel it's the best of both worlds for this kinda old man. Good luck Brian F.
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#4 |
Registered User
Join Date: Jan 2014
Location: charlotte
Posts: 17
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Re: mufflers
I say flowmaster 50 if you want it alittle more quiet but sounds good when you get on it . Still have good back pressure.
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#5 |
Registered User
Join Date: May 2010
Location: Edmonton, Alberta
Posts: 3,848
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Re: mufflers
I run the Delta 50's on my 72' Blazer. They are great, relatively quiet under normal driving and have a nice sound when you open her up.
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--------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67 |
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#6 |
Registered User
![]() Join Date: Oct 2013
Location: Stockton, CA
Posts: 475
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Re: mufflers
just go to their web site - have several brand new mufflers now: flowmastermufflers.com
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#7 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: mufflers
What exactly do you mean when you say your Magnaflows aren't performing well?
The baffled design of the Flowmaster will make any of them drone inside the cab. Some not quite as much as others, though. The 70 series is probably the quietest of all Flowmasters.
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#8 |
Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,143
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Re: mufflers
I'd like to hear about this as well. I've run Magnaflow's on many hot rods and have never had a "performance" issue.
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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#9 |
Registered User
![]() Join Date: Aug 2013
Location: Va
Posts: 165
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Re: mufflers
The have been on for less than 200 miles and there is no back pressure. They also sound terrible.
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#10 |
Registered User
Join Date: May 2010
Location: Hillsboro, Oregon 97123
Posts: 1,300
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Re: mufflers
I have flowmaster 50's I like them a lot better then the 40's
real quite in over drive
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Measure with a yard stick Mark with Chalk Cut with a torch ![]() Built it yourself, don't count on others to to do it for you or with you. It will never get done |
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#11 |
Registered User
Join Date: Jan 2014
Location: Nampa, Idaho
Posts: 9
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Re: mufflers
I know theyre not Flowmasters, but turbo's have a really nice sound to them. I have turbo's on my chevy, and my 350 is built for torque and off-roading, and it performs great with those mufflers. When they break in, theyre a little louder, but you can hear inside the cab, and they dont scare off deer when youre hunting. but if you step on it, you get a nice bark out of them. Thats my opinion, but i also plan on going to flowmasters some day soon. But turbo's are really good mufflers, especially if youre on a budget. and they last for a long time. Mine have been on my truck for about 8-12 years and they sound great, no holes, or rotting out spots yet. if i remember right, i think mine are about 20-24 inches long.
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#12 | |
Account Suspended
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
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Re: mufflers
Quote:
http://s851.photobucket.com/user/BWF...out-1.mp4.html That's how a ZZ572 sounds through Magnaflows! Performance "issues"? NONE |
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#13 |
What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: mufflers
I run the Flow Master 70 series on my Suburban, and they are mellow but have a nice sound.
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Chris 1968 K20 Suburban 1972 K10 LWB PU |
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#14 |
Senior Member
![]() Join Date: Oct 2013
Location: Santa Paula, CA
Posts: 600
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Re: mufflers
I had same issue with mufflers being to loud inside cab.I originally had headman headers with 3" collector,18" of 3" pipe feeding 3"super 40 flow masters,then direct 3" turn downs. Mufflers were directly under cab.you couldn't hear yourself think and could set off car alarms on the other side of the street.(side note my g/f at the time lived only a block from me, she told me that she could hear if I went home after seeing her or kept driving into town to meet up with the guys. Lol) I had to make a change so I relocated them further back under the bed and had turnouts directed in front of tires. Still pretty loud but quieter in cab. Try also putting down sound deadening material like dynamat on floor pan and behind gas tank, and behind door panels.
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1972 C/10 LWB - Mine 1964 C/10 LWB - My Dad's Instagram: Mike_The_Grad |
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#15 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: mufflers
How is your exhaust set up? Pipe size? x or h pipe? full tail pipes or dumped?
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