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#1 |
Registered User
Join Date: Jan 2003
Location: Moncton New Brunswick
Posts: 56
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My 85 sierra classic currently has 2.5 inch duals with flo-pro mufflers(14 inch cases) and an H-pipe the truck has a stock 350 motor. My question is which mufflers would you suggest for a deeper and mellower sound because my current mufflers are to damn loud for my liking?
Some people suggested Dynomax Hemi Super Turbos but after looking at these I'am little concerned how long they would last. Would certain models of Flowmaster or Magnaflow be a better choice? Thanks Rob |
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#2 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: which mufflers?
I'm having the same problem -- used to think the Flo Pros were the best thing since sliced bread, but now that I've got my truck running again, dang she is loud!
I'm thinking I'm going to install a set of glass packs infront of the Flo pros, and see if that is able to make it a bit quieter.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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#3 |
Sb 400 club
Join Date: Nov 2005
Location: NH / MA
Posts: 2,741
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Re: which mufflers?
u could go super 40's fom flowmaster. I have the 50's but the cab drone is bad. they have a nice low sound and i hear the 40's are better in the cab. Just don't go cherrie bomb or spin tech if u want them quiet
thats my 2 censts any way
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![]() ![]() 77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed ![]() 1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out |
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#4 |
Registered User
Join Date: Jan 2003
Location: Moncton New Brunswick
Posts: 56
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Re: which mufflers?
I must be getting older because the noise is getting on my nerves and since I put the truck away for the winter this is something I would like to fix over the winter. Some people suggest Magnaflow over Flowmaster? Some people suggested Dynomax Hemi Super turbos but personally these muffler don't look like they would last very long. How much does a larger body muffler help this problem? Rob
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#5 |
Registered User
Join Date: Sep 2004
Location: Elkins, West Virginia
Posts: 2,542
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Re: which mufflers?
i love the sound of flowmaster 40's....i even like the "drone" sounds in the cab...
![]() ...must just be me, but it's like music to my ears ![]()
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1987 350 TBI lowered 5/7 |
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#6 |
Registered User
Join Date: Jan 2005
Location: Hixson TN.
Posts: 74
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Re: which mufflers?
I just put flowmaster 70's on mine. I had 40's but couldn't even talk on the phone. Luckily my neigbor just put 50's on his 78 GMC they were too loud for me. The 70's still have a low rumble but are very quiet in the cab. I hear the carb open up instead of the exhaust when I floor it. The 70's are twice as long as the 40's so you nead to cheak for fit.
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82 C-10 Scottsdale LB owned since 89 350 crate vortec heads Crane 1.6 full rollers edelbrock 1406 edelbrock performer eps intake dynomax headers/flowmaster 70's BTO 700r4 level 3 custom 2 piece driveshaft 12 bolt gov loc w/3.08 |
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#7 |
Registered User
Join Date: Nov 2003
Location: st. louis area
Posts: 1,551
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Re: which mufflers?
Ive got Dynomax Super Turbos on mine I love how they sound personally. Ive had em on there for 4 years...I dont drive it year around, so I cant really tell you how well they do in year around conditions, but I really like em personally
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75 GMC C-15 short/step factory 454, lowered |
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#8 |
www.73-87chevytrucks.com
![]() Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: which mufflers?
I ran Dynomax Super Turbos on my truck with a 454, it wasn't loud at all and they are still good. They were driven on there for about 6-7 years.
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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#9 |
Registered User
Join Date: Dec 1999
Location: Minor, AL
Posts: 91
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Re: which mufflers?
Hey Chris, I have Dynomax super turbos as well. Maybe you can elaborate on how they sound with a 350 since you've heard mine a million times or so. (headers, straight duals, no converters, no H pipe)
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Mike 1985 White Custom Deluxe LWB Early 70's 350 / stock turbo 350 2.73 open differential 10 bolt (yeehaw) Priceless sentimental value |
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#10 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: which mufflers?
I have Flowmasters on my truck and then I put some Dynomat in my cab, eliminated the drone and I still get the rumble when I drive.
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#11 |
CUSTOM CHEVY FIEND
Join Date: Jul 2005
Location: CHICO CA
Posts: 227
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Re: which mufflers?
For My Tast I Like To Hear My Exhaust In The Cab, Not Loud , But That Nice Resinating You Get At A Certin Rpm With Flowmasters.
Any Glasspacks Are Way To Loud For Me. Also A Tapered Or Megaphone Shaped Tip Can Give You Alittle More Volume, And Still Not Be To Loud. |
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#12 |
You get what you pay for
![]() Join Date: Dec 1999
Location: Cherryville, NC
Posts: 4,798
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Re: which mufflers?
Oh, I didn't notice the new guy from Birmingham.
![]() I know I'm getting old. My ringing ears can't stand the noise anymore. I have went back to stock mufflers. I'm now running NAPA Quietflows. With my combination of cam, headers, dual 2.5" x pipe, etc., it sounds really nice. Not stock sounding but still not loud. Sort of reminds me of the way 70's performance cars sounded from the factory. Now I can listen to my tunes and not have to crank it up like a teenager just to hear them. ![]()
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Mike 1985 Chevy C-10 |
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#13 |
Registered User
Join Date: Jan 2003
Location: Moncton New Brunswick
Posts: 56
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Re: which mufflers?
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#14 | |
www.73-87chevytrucks.com
![]() Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: which mufflers?
Quote:
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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#15 |
Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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Re: which mufflers?
The Super Turbos have a lifetime warranty, if that means anything.
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#16 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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Re: which mufflers?
I've ran 40 Series with my X pipe and now I have Aero Chambers and they are my favorite of all I've ran so far.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#17 |
Registered User
Join Date: Oct 2004
Location: cape cod mass
Posts: 65
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Re: which mufflers?
any run edelbrock mufflers yet i was just wondering how they sound
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#18 |
Registered User
Join Date: Jan 2005
Location: Chapin, SC
Posts: 392
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Re: which mufflers?
Same here, anyone run the Edelbrock RPM's??
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"Fighting for our freedoms....." |
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#19 |
Registered User
Join Date: Feb 2005
Posts: 88
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Re: which mufflers?
hey i like the deep tone low and mean sound I was tuning my 73 350 and tried the mufflers up close to the headers and way back like at the bumper . It seamed to me that the mufflers way out back by the bumper were the deepest sound But looks made me put them in front of the rear end and I put 3 inch pipes on out to the side corners the rest was 2.5 . no h pipe ....... Here is a web site for sound of Flowmasters site .http://www.flowmastermufflers.com/sound.html copy it and past to get their.
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#20 |
Registered User
Join Date: Mar 2003
Location: Walker, LA
Posts: 2,925
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Re: which mufflers?
I think I'm about to change my flows to some Dynomax bullets. Anybody ever heard them? Also, it's not my DD anymore...hell it hasn't even been cranked in about 5 months.
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Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels |
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#21 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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Re: which mufflers?
82BlackBeast had the Edelbrock mufflers on his truck (not sure if he sold it yet or not). I rode with him a couple times in his truck and they sounded good. Not sure what model they were though. Plus he had a 406 small block worked over that helped it out alot as well.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#22 |
Registered User
Join Date: Jan 2003
Location: Moncton New Brunswick
Posts: 56
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Re: which mufflers?
Thanks again for all the input. The guy at the local speed shop suggested Magnaflow but I,ve only heard these on cat-back systems. I'am not sure but the 2.5 inch duals on a stock 350 make my current system louder as well. How much does the size of the muffler affect the noise level?
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