![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#26 |
Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,932
|
Re: Flowmasters getting on my nerves...
Mine was too loud so I added a Turbo...
I would vote for Magnaflow also they sound great, you can probably even dump them but like said if you get them out back they will be quieter. No drone
__________________
Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
![]() |
![]() |
![]() |
#27 |
Registered User
![]() Join Date: Mar 2007
Location: Marbury, Alabama
Posts: 195
|
Re: Flowmasters getting on my nerves...
I think this is more of the sound I want. The flows sound hollow.
__________________
Big Block Powered |
![]() |
![]() |
![]() |
#28 |
Registered User
Join Date: Sep 2012
Location: canoga park, ca.
Posts: 120
|
Re: Flowmasters getting on my nerves...
|
![]() |
![]() |
![]() |
#29 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
|
Re: Flowmasters getting on my nerves...
I don't like any mufflers dumping out under the body. I used to like Flowmasters and still do. I like variety and run different mufflers on different vehicles. I want a retro sound in my '67 SWB and will be running Powerstick chambered mufflers. I have the 6" round Dynamax mufflers with 3" pipes on another truck. Walker used to make some favorites,Red Line Zs (turbos) and Turbo Tubes (chambered). I wish they still made those. My '72 K2500 has had the Flowmasters on there with exhaust run all the way out since 2004. I have driven that all over the place and can't imagine the sound getting on anyone's nerves. I never even had a radio in it. I never run quiet stock exhaust and these are a happy medium between quiet and loud. When I open it up I just hear motor up front and it sounds great out back
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 11-14-2012 at 10:48 PM. |
![]() |
![]() |
![]() |
#30 |
Registered User
Join Date: Mar 2011
Location: Oak Ridge NC
Posts: 957
|
Re: Flowmasters getting on my nerves...
My last two cars were pretty loud and now I'm over it. With my Blazer that is being built I'm going with a fairly quiet muffler BUT, I'm putting a set of electric cutouts in front of them so I can have it quiet or loud.
|
![]() |
![]() |
![]() |
#31 |
C/10 junkie
Join Date: Nov 2010
Location: Stockton Ca
Posts: 9,093
|
Re: Flowmasters getting on my nerves...
Here is what my magnaflows sound like. Not very loud inside at all but when I step on it, it sounds great!!
Posted via Mobile Device
__________________
Shawn 70 LWB C10 current driver/project http://67-72chevytrucks.com/vboard/s...d.php?t=663051 68 SWB C10 Work in progress.....SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=559520 72 LWB C10 Sold 71 LWB C10 Sold 68 LWB C10 CST Sold http://youtu.be/kbB0QrBIs9k My mom always had the best advice. It was just a tad late. After a fall that involved blood, she'd say....."Careful!" ![]() |
![]() |
![]() |
![]() |
#32 |
425hp409
![]() Join Date: Oct 2008
Location: Prosper Texas
Posts: 841
|
Re: Flowmasters getting on my nerves...
I have an El Camino with headers and a high performance 454. I had 3" exhaust with Flowmaster 40's put on and it was brutally loud and obnoxious with full tailpipes. I then installed 12" glass packs in the tailpipes just before the exit to act like resonators and it mellowed the sound down, but still sounds good. I just put Magnaflows on my 67 Olds 442 and they sound great.
Posted via Mobile Device
__________________
Charles 68 SWB, Dad bought new, now 396 & factory ac 64 Impala SS, 409 425HP, 4 speed AC 64 Bel Air Wagon, 400 Small Block 57 Bel Air all original 283 w/Factory Air 77 GMC Sprint, 454/425HP 67 Olds 442, all original 90 ZR1 Corvette |
![]() |
![]() |
![]() |
#33 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
|
Re: Flowmasters getting on my nerves...
Changed from Flowmasters to Magnaflows on my trucks. I am not sorry and they still bark hard when pushed.
__________________
Frank |
![]() |
![]() |
![]() |
#34 |
Registered User
Join Date: May 2009
Location: Monroe, LA
Posts: 2,104
|
Re: Flowmasters getting on my nerves...
Question for all of the Magnaflow owners...which of their mufflers are you running? Or are they all similar in sound? Does anyone have video of a vehicle running them under hard acceleration? I think this is the route I m going to go on my '63, but would like to hear the under hard acceleration. The drone of the Flowmaster 40s is getting to me too.
__________________
Keith SOLD - 1963 C10 Short Fleet 350/700R4 4/6 drop 1967 GMC Super Custom - Short Fleet COPO concept w/427 BBC T-400 w/Doug Nash overdrive 4/6 Drop, Buddy Buckets, etc... Frame Off (In Progress) I call it "Vulgar Display of Power" 1980 Silverado Original paint 49k Original miles 4/6 drop Check out my build thread here: http://67-72chevytrucks.com/vboard/s...=1#post6209941 |
![]() |
![]() |
![]() |
#35 |
Registered User
Join Date: Oct 2012
Location: Honolulu,hi
Posts: 19
|
Re: Flowmasters getting on my nerves...
Just got the 50 series two weeks ago I hate it .still got the drone but not as loud as the 40 series. Should have got magna flow or even headman turbo mufflers.
Posted via Mobile Device |
![]() |
![]() |
![]() |
#36 |
C/10 junkie
Join Date: Nov 2010
Location: Stockton Ca
Posts: 9,093
|
Re: Flowmasters getting on my nerves...
I don't have any hard acceleration video but I do have a little revving.
Posted via Mobile Device
__________________
Shawn 70 LWB C10 current driver/project http://67-72chevytrucks.com/vboard/s...d.php?t=663051 68 SWB C10 Work in progress.....SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=559520 72 LWB C10 Sold 71 LWB C10 Sold 68 LWB C10 CST Sold http://youtu.be/kbB0QrBIs9k My mom always had the best advice. It was just a tad late. After a fall that involved blood, she'd say....."Careful!" ![]() |
![]() |
![]() |
![]() |
#37 | |
Registered User
![]() Join Date: Mar 2007
Location: Marbury, Alabama
Posts: 195
|
Re: Flowmasters getting on my nerves...
Quote:
__________________
Big Block Powered |
|
![]() |
![]() |
![]() |
#38 |
Registered User
Join Date: Jul 2010
Location: Hemet,Ca
Posts: 1,502
|
Re: Flowmasters getting on my nerves...
Flowmaster 50 or 70 is what you want.
__________________
Stovebolt-It is painted |
![]() |
![]() |
![]() |
#39 |
Registered User
Join Date: May 2007
Location: Mooresville NC/Gainesville GA
Posts: 499
|
Re: Flowmasters getting on my nerves...
I like Dynomax Super Turbos but I don't dig loud exhaust. I think a big cam sounds great through some turbo mufflers. I'll shoot a video tomorrow of my El Camino. Don't rule out a big single exhaust either, My 87 crewcab has a warmed up 454 through a 3" single exhaust with largest Magnaflow muffler. It sounds good too. Don't be afraid to think outside the box....
__________________
Eric Evans Queen City Shop Truck http://67-72chevytrucks.com/vboard/s...34#post6139834 66 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=543110 |
![]() |
![]() |
![]() |
#40 |
Registered User
Join Date: Aug 2007
Location: Redwood City, CA
Posts: 1,177
|
Re: Flowmasters getting on my nerves...
You are going to get a ton of different opinions about which muffler to run and it's all good info but here is what I found helps a lot with interior noise/drone from your exhaust regardless of which muffler you choose:
- Run the exhaust all the way out to the back - Make sure to use quality rubber isolated exhaust hangers (not the muffler shop metal arm with small rubber gasket) this goes a long way in keeping sound and vibration from the exhaust from entering the cab I have found the Flowmaster 50 series to be a great way to quiet down the drone from inside but still provide that 40 series flowmaster sound outside the truck
__________________
66 GMC Suburban Custom 66 Chevy K10 Suburban |
![]() |
![]() |
![]() |
#41 |
Registered User
Join Date: Jun 2012
Location: Pittsgrove, NJ
Posts: 1,502
|
Re: Flowmasters getting on my nerves...
no droning in the cab since it exits so far back, but it still has a nice raspy rumble. just to give another opinion.
__________________
Will 1968 C10 - Project Texa Go 6.0/4L80e 2003 Mitsubishi Lancer Evolution 2002 Ford Excursion 7.3L 2024 Toyota Sienna |
![]() |
![]() |
![]() |
#42 |
Registered User
Join Date: May 2010
Location: Hillsboro, Oregon 97123
Posts: 1,300
|
Re: Flowmasters getting on my nerves...
I have flowmaster 40's and they were a lil loud but i added a shorty 8" glasspack in front of the Muffler and Man ....I love then now.
Mean Ass Growl.......
__________________
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 |
![]() |
![]() |
![]() |
#43 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
|
Re: Flowmasters getting on my nerves...
One thing to think about as you build your exhaust system. The whole principal of opening it up is to lower backpressure and make it more efficient. If you add glasspacks or resonators in front of your Flowmasters or your Magnaflows, the back pressure has been increased and the efficiency decreases. I gave up my flowmasters and went with the Magnaflow for a smoother sound and still has a flow characteristic of a Flowmaster.
__________________
Frank |
![]() |
![]() |
![]() |
#44 | |
Registered User
Join Date: May 2010
Location: Hillsboro, Oregon 97123
Posts: 1,300
|
Re: Flowmasters getting on my nerves...
Quote:
__________________
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 |
|
![]() |
![]() |
![]() |
#45 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
|
Re: Flowmasters getting on my nerves...
If it is canceling the noise, it is doing it with a reversion of the exhaust gases, which in turn is creating a backpressure. However slight it may be. There is another way to do the exhaust if you want to try it. It involves no mufflers and the use of "J" tubes, which are tubes welded onto the exhaust close to the rear exit point and they make a pressure bubble that helps to cancel loud noise. The "J" tube is welded to the side of the pipe under the vehicle.
__________________
Frank |
![]() |
![]() |
![]() |
#46 |
Registered User
![]() Join Date: Jan 2008
Location: St.Petersburg,Fl
Posts: 1,267
|
Re: Flowmasters getting on my nerves...
I run Dynomax Super Turbos, 3" mandrel bent tubes with an X pipe. A well insulated cab also. Quiet to drive, and respectable sound when you're on it. I also have a 4/7 swap roller that improves harmonics of the motor. .02
|
![]() |
![]() |
![]() |
#47 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 702
|
Re: Flowmasters getting on my nerves...
I run Summit El Cheapo Turbos that terminate at the end of the 12 foot bed. It not obnoxious at idle but not quiet either. The cab is quiet. Worth every penny.
__________________
1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
![]() |
![]() |
![]() |
#48 |
GEARHEAD
Join Date: Aug 2003
Location: MN
Posts: 6,122
|
Re: Flowmasters getting on my nerves...
My exhaust isn't done yet, but I just installed an X type cross over then stuffed the flowmaster 40's on the pipes with about 18" behind that some more pipe. The idea was just to have something on there when I first got it on the road. I don't mind the rumble when I drive it, but HATE the drone when it is at idle and in gear, backing out of the driveway and at the lights. It makes the rear window buzz like a bazooka bass rattling a loose license plate.
My plan is to finish running the exhaust out behind the rear tires. I already have most of the pipe. But I'm debating on keeping the 40's. My Jimmy has some cheapo summit sonic turbos, and thats what I ran on my truck before the restoration, and I like them. So I might switch back to the sonic turbo style.
__________________
If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 ![]() 72 ![]() HG's Plow Truck '78 ![]() Bigass Farm Truck HG's thread of miscellaneous stuff |
![]() |
![]() |
![]() |
#49 |
Senior Member
![]() Join Date: Oct 2013
Location: Santa Paula, CA
Posts: 600
|
Re: Flowmasters getting on my nerves...
Old thread, just for the heck of it as I'm currently dwelling on my newly discovered recently purchased all aluminum-very-expensive-radiator cracks.... But that's for another thread. I bought my 1972 custom/10 from my ex girlfriends father. Pretty much stock with 70,000 on a 10 year old rebuild.this was in 2004. First thing I did,pull all smog related equip. Since I removed piping and altered dimensions of tailpipes due to removal of cats. I figured how short can I make his exhaust,with the mindset of a teenager thinking shortest distance of anything was a straight line,I.e. exhaust gases out faster meant intake mixtures faster...am I right? Lol. So I installed hedman long tube headers ending in 3" collectors, feeding 18" of 3" pipe,attached to flow master "super 40" with 90° turndowns. Which put the outlet almost directly underneath the cab. I could set off car alarms on the other side of a four lane street. There's no sneaking home at 2 in the morning with exhaust like that. At the time my girlfriend a block and a half away, when I "went home" for the night meaning going downtown with the boys,she would stand on her front porch and could literally hear me drive where ever it was in town and turn off my truck. When she told me she knew I didn't go home I figured I had a rat in the pack so to say, low and behold I was the rat...lol. No harm no foul. That lasted about 6 months til I couldn't hear my newly installed stereo even at the max. setting. So I had them relocated to under the bed with 3" turnouts in front of rear tires. Still really loud,just not in the cab where I'm at! Lol
__________________
1972 C/10 LWB - Mine 1964 C/10 LWB - My Dad's Instagram: Mike_The_Grad |
![]() |
![]() |
![]() |
#50 |
Where's my beer?
Join Date: Oct 2004
Location: Glen Allen, VA
Posts: 1,768
|
Re: Flowmasters getting on my nerves...
Flowmaster 50 series out the back will make a huge difference. I've put thousands of miles on my Corvette with headers and flowmaster 50's. I love the muted rumble of the Flowmasters, and they still make noise when you get on it.
__________________
70 C10, shortstep, .30 over 250,Hurst shifted 3 spd parts hauler. Holley 390, Clifford Intake, Header, ported cylinder head, unknown bigger cam. 79 Corvette L82, 4 spd, black, red interior, headers, flowmasters, and unkown bigger cam. '03 Grand Cherokee Laredo, 4.0 4x4 daily driver. 165K miles, and runs great '08 Tahoe LTZ 4x4 155K |
![]() |
![]() |
![]() |
Bookmarks |
Tags |
exhaust, mufflers |
|
|