What Muffler to use? No drone wanted. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mcbassin · 10-28-2011, 11:28 AM

What kind of muffler have you guys used that doesn't produce the loud droning noise at low speeds. I want one that flows, sounds good, stainless and oh yeah.....cheap. Go figure. I was thinking about THIS or maybe THIS.
recommendations? My exhaust will be 2.5" dia.

eightbanger · 10-28-2011, 11:44 AM

Mine has Flowmaster 40's

Big Dog 454 - YouTube

original-71 · 10-28-2011, 11:50 AM

Flowmaster 40 series

**D.PASSMORE** · 10-28-2011, 02:00 PM

I've run most of them all - Flowmaters, Magnaflows, Dynomax. My favorite is the Magna with 18" tubes on the end. Right now, running dual 2.5' BORLA mufflers with SS cut tips - not tubes. Fairley loud and crisp on acceleration and low on cruise.

sanford66 · 10-28-2011, 03:01 PM

Flowmaster 40 series on my 68. I like waking the neighbors up when i get home from work! Joseph

Classic69 · 10-28-2011, 03:02 PM

M-A-G-N-A-F-L-O-W!! lol...stainless construction, sounds good, and no drone!

webfoot · 10-28-2011, 03:19 PM

There might not be a droney-er muffler than the flow 40, since you specifically asked for one that didn't. Or, did you mean drone at high speeds is OK?

The magnaflow is a straight-thru design and will be somewhat loud with an 11" case. My chevelle has those in about that size and it sounds mean, no drone despite dumping right in front of axle.

doctrouble · 10-28-2011, 03:20 PM

I'm new to muffler sound terms.. and wasn't sure what "drone" is.

vin63 · 10-28-2011, 03:37 PM

Quote:

Originally Posted by mcbassin

What kind of muffler have you guys used that doesn't produce the droning at low speeds. I want one that flows, sounds good, stainless and oh yeah.....cheap. Go figure. I was thinking about THIS or maybe THIS.
recommendations? My exhaust will be 2.5" dia.

I had to drive a shop truck with Flowmaster 40s and the drone at highway speed (around 2000-2500 RPMs) was unbearable for me. I personally run Borlas on my hot rods and mufflered race cars, but I have ridden in vehicles with MagnaFlows that didn't have aggressive drone at sustained highway or lower RPMs.

mcbassin · 10-28-2011, 04:00 PM

Quote:

Originally Posted by webfoot

There might not be a droney-er muffler than the flow 40, since you specifically asked for one that didn't. Or, did you mean drone at high speeds is OK?

The magnaflow is a straight-thru design and will be somewhat loud with an 11" case. My chevelle has those in about that size and it sounds mean, no drone despite dumping right in front of axle.

I specifically DON'T want that annoying drone that is associated with some I have driven and ridden in. Whether it's at low speed or high speeds. Don't get me wrong I want to sound good when I give it some gas.

I don't have much experience with modern mufflers. That's why I'm asking here.

mcbassin · 10-28-2011, 04:02 PM

Quote:

Originally Posted by doctrouble

I'm new to muffler sound terms.. and wasn't sure what "drone" is.

That loud roar that fills the cab will noise when you let off the gas at low speed and apparently at high speeds in some cases. Not heard when standing on the throttle or at idle.

mcbassin · 10-28-2011, 04:03 PM

Quote:

Originally Posted by vin63

I had to drive a shop truck with Flowmaster 40s and the drone at highway speed (around 2000-2500 RPMs) was unbearable for me. I personally run Borlas on my hot rods and mufflered race cars, but I have ridden in vehicles with MagnaFlows that didn't have aggressive drone at sustained highway or lower RPMs.

I have heard really good about the Borla but they are pretty well out of my price range right now.

fastwillie 696969 · 10-28-2011, 04:20 PM

im bais my friends work at flowmasters and i get free mufflers last ones my buddy gave me were delta 50's 3 inch . they rattle windows

mcbassin · 10-28-2011, 04:21 PM

I just found THESE That are even cheaper. Not sure what the difference is unless they aren't embossed with Magnflow logo?

50bomb · 10-28-2011, 04:22 PM

I heard borla is very nice sound not that loud sound and/or the Magnaflows. I use to have flowmasters 40 dual on the 350 and it was loud. My lake pipes where louder haha.

*RUSHNBOBO* · 10-28-2011, 04:35 PM

Flowmaster super 40's w/crossover.....deeper tone than 40's, no noticeable drone

Dually leaving Show, Cameron Park CA Oct. 2011..............raced that white '71 Camaro on the way home 110 mph.

http://www.youtube.com/watch?v=xXXitIxZbPc

vectorit · 10-28-2011, 05:04 PM

I currently run FM series 70's with an H pipe, the tail pipes exit behind the rear wheel as well. At average highway cruise speeds, I have a drone that resonates in the suburban cabin. It's not too terribly bad, but after a while of listening to it I want it gone.

For the '70 K10 SWB I plan to put in the Dynomax "Hemi super turbo" mufflers, since it is a short length of pipe and I want it some what quiet on long drives.

http://www.jegs.com/p/Dynomax/Dynoma...44700/10002/-1

big mike71 · 10-28-2011, 05:26 PM

I have Flowmaster 40's with an H-pipe that exit at the rear bumper with no drone.

vin63 · 10-28-2011, 05:26 PM

Quote:

Originally Posted by mcbassin

I have heard really good about the Borla but they are pretty well out of my price range right now.

I hear you. I would try to go with a straight through type of design rather than a chambered if you're looking to minimize drone. The other thing that I would recommend is whichever muffler you do end up going with, mount them as far back as possible to keep some of the resonance (which creates a lot of the drone noise) away from the cab.

*RUSHNBOBO* · 10-28-2011, 05:35 PM

Dually's sbc 355....... Flowmaster super 40's idle + rev

http://www.youtube.com/watch?v=sig_mVe1xrY

shearjs · 10-28-2011, 05:41 PM

I have Hooker Max Flow's on my 4.8 in my 03. Pretty quiet in the cab, but a nice deep tone when on the throttle, no drone. I'm still undecided on the 6.0 swap for my '70 though. Somewhere I read that Moroso Spiral Flow has a nice sound but I haven't done much research.

*RUSHNBOBO* · 10-28-2011, 05:59 PM

Interior noise has a lot to do with the type of vehicle and exhaust exit location .....a burb will have considerably more problems controlling interior resonance than a pickup. The large interior cabin space will amplify the sound coming from under the vehicle, where as a pickup, the sound is exited well behind the cabin space and is less of a problem.

Dynamat at least the rear of your cab if resonance is a problem, and the whole cab floor if possible. The noise inside my ride is noticeable but not even close to being annoying .....no noticeable drone at all.

c1069 · 10-28-2011, 06:29 PM

I'm not trying to hijack this thread, but someone has tried this brand http://thecoffinmuffler.com. Since they are local but I need to hear some comments about them. Anyone

webfoot · 10-28-2011, 06:48 PM

You can listen to a lot of sound clips on magnaflow's website.

http://www.magnaflow.com/04sound/04american.asp

I like the 67 malibu clips.

*RUSHNBOBO* · 10-28-2011, 06:59 PM

Quote:

Originally Posted by c1069

I'm not trying to hijack this thread, but someone has tried this brand http://thecoffinmuffler.com. Since they are local but I need to hear some comments about them. Anyone

They look cool.....every manufacturer claims "newest cutting edge technology" ...... and their product is always the best; haven't heard enough about these.

10-28-2011, 11:28 AM	#1
mcbassin Still Learning Join Date: Jul 2009 Location: Central Oklahoma Posts: 10,108	What Muffler to use? No drone wanted. What kind of muffler have you guys used that doesn't produce the loud droning noise at low speeds. I want one that flows, sounds good, stainless and oh yeah.....cheap. Go figure. I was thinking about THIS or maybe THIS. recommendations? My exhaust will be 2.5" dia. __________________ Mike "69 Short Wide" My Project 86 Silverado Landen's Project Instagram: @mcbassin My Website C/10 Club Oklahoma Facebook Group Last edited by mcbassin; 10-28-2011 at 03:53 PM.

10-28-2011, 11:50 AM	#3
original-71 ///Relaxed Atmosphere Join Date: May 2010 Location: Houston,Tx Posts: 1,266	Re: What Muffler to use? No drone wanted. Flowmaster 40 series __________________ 71-Cheyenne Super (E.C.E Static Drop 4.5/7". Intro Rally's 20X8.5 5" B.S 255/35/20 (F) 20X10 5.25 B.S 275/35/20 (R) 87-Silverado Static Drop 5/7" Raceline Explosion 5 22X8.5 (F) 22X10 (R) hector _________________________________ 1971 Chevrolet Cheyenne Super 1987 Chevrolet Silverado 2006 Ford Mustang GT 2012 Toyota 4-Runner 2014 Dodge Ram 1500 Sport Crew Cab

10-28-2011, 02:00 PM	#4
D.PASSMORE One of the First Join Date: Jan 2000 Location: St. Augustine,FL. Posts: 4,054	Re: What Muffler to use? No drone wanted. I've run most of them all - Flowmaters, Magnaflows, Dynomax. My favorite is the Magna with 18" tubes on the end. Right now, running dual 2.5' BORLA mufflers with SS cut tips - not tubes. Fairley loud and crisp on acceleration and low on cruise. __________________ DAVID PASSMORE ST AUGUSTINE ,FL ZIP 32084 '71 SWB K/10 CUSTOM DELUXE (Chili) '72 BLAZER K/5 Muscle Truck (Mule) '72 LWB K/20 CHEYENNE (Blackie) Last edited by D.PASSMORE; 10-28-2011 at 03:37 PM.

10-28-2011, 03:01 PM	#5
sanford66 Registered User Join Date: Jun 2007 Location: Everest Ks Posts: 749	Re: What Muffler to use? No drone wanted. Flowmaster 40 series on my 68. I like waking the neighbors up when i get home from work! Joseph __________________ 1970 Chevelle Nomad station wagon 1966 C-10 lwb,250-six,granny 4speed 1966 C-10 lwb,factory A/C,Custom Cab 1954 Delray 2-door sedan [rat rod project]

10-28-2011, 03:02 PM	#6
Classic69 Love That '69 Join Date: Oct 2007 Location: Sherwood Park, Alberta, Canada Posts: 360	Re: What Muffler to use? No drone wanted. M-A-G-N-A-F-L-O-W!! lol...stainless construction, sounds good, and no drone! __________________ *I AM CANADIAN!!!!!* 1969 Chevy C/10 Truck - SBC V8, TH-350, 3.73 Posi, 1000W Rockford Fosgate Stereo System, B&M Megashifter, GT Grant Steering Wheel, Dual Magnaflow Exhaust System, Dynomax Headers, Lowered 1" Front & 3" Rear, Front/Rear Sway Bars, Racing Seats, 6000K HID Headlights 2008 Chevy Colorado LT - 3.7L I5, 4 Speed Automatic, Crew Cab, 4X4, Z71 Off-Road Package, "Ground Effects" Package, K&N Cold Air Intake, Supermod PTB, Magnaflow Exhaust w/ Resonator, 500W Kenwood / Rockford Fosgate Stereo System, Custom LED Lighting, 6000K HID Low's / High's, Blackcat Customs Gauges / Needles, Carbon Fiber Interior Accents, KrFabs 2" Lift Shackles / Torsion Bar Crank with Rancho RS5000 Shocks, Superskids Skid Plates

10-28-2011, 03:19 PM	#7
webfoot Registered User Join Date: Nov 2007 Location: Hermiston, OR Posts: 947	Re: What Muffler to use? No drone wanted. There might not be a droney-er muffler than the flow 40, since you specifically asked for one that didn't. Or, did you mean drone at high speeds is OK? The magnaflow is a straight-thru design and will be somewhat loud with an 11" case. My chevelle has those in about that size and it sounds mean, no drone despite dumping right in front of axle. __________________ *Running in place gets you nowhere fast.* -me 1968 GTO 4-spd covnvertible 1970 K-20 4-speed, factory AC.

10-28-2011, 03:20 PM	#8
doctrouble Registered User Join Date: Nov 2010 Location: L.A. California Posts: 82	Re: What Muffler to use? No drone wanted. I'm new to muffler sound terms.. and wasn't sure what "drone" is. __________________ "Feel it's not a bonfire unless they can see it from space?" ~ Capt. Morgan 1970 Cst - 20 402 1984 Chevy C30 6.2L Diesel crew cab Dualie

10-28-2011, 04:20 PM	#13
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	Re: What Muffler to use? No drone wanted. im bais my friends work at flowmasters and i get free mufflers last ones my buddy gave me were delta 50's 3 inch . they rattle windows __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex

10-28-2011, 04:21 PM	#14
mcbassin Still Learning Join Date: Jul 2009 Location: Central Oklahoma Posts: 10,108	Re: What Muffler to use? No drone wanted. I just found THESE That are even cheaper. Not sure what the difference is unless they aren't embossed with Magnflow logo? __________________ Mike "69 Short Wide" My Project 86 Silverado Landen's Project Instagram: @mcbassin My Website C/10 Club Oklahoma Facebook Group

10-28-2011, 04:22 PM	#15
50bomb Registered User Join Date: Jul 2010 Location: Hemet,Ca Posts: 1,502	Re: What Muffler to use? No drone wanted. I heard borla is very nice sound not that loud sound and/or the Magnaflows. I use to have flowmasters 40 dual on the 350 and it was loud. My lake pipes where louder haha.

10-28-2011, 05:04 PM	#17
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: What Muffler to use? No drone wanted. I currently run FM series 70's with an H pipe, the tail pipes exit behind the rear wheel as well. At average highway cruise speeds, I have a drone that resonates in the suburban cabin. It's not too terribly bad, but after a while of listening to it I want it gone. For the '70 K10 SWB I plan to put in the Dynomax "Hemi super turbo" mufflers, since it is a short length of pipe and I want it some what quiet on long drives. http://www.jegs.com/p/Dynomax/Dynoma...44700/10002/-1 __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

10-28-2011, 05:26 PM	#18
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: What Muffler to use? No drone wanted. I have Flowmaster 40's with an H-pipe that exit at the rear bumper with no drone. __________________ I'm not as good as I once was, But I'm as good once as I ever was.

10-28-2011, 05:41 PM	#21
shearjs Registered User Join Date: Mar 2011 Location: Thompsons Station, TN Posts: 700	Re: What Muffler to use? No drone wanted. I have Hooker Max Flow's on my 4.8 in my 03. Pretty quiet in the cab, but a nice deep tone when on the throttle, no drone. I'm still undecided on the 6.0 swap for my '70 though. Somewhere I read that Moroso Spiral Flow has a nice sound but I haven't done much research. __________________ -Jason '72 Family Hauler Rufus' Restoration - 70 GMC, LS swap - SOLD

10-28-2011, 05:59 PM	#22
RUSHNBOBO Account Suspended Join Date: Jun 2010 Location: Placerville Ca. Posts: 982	Re: What Muffler to use? No drone wanted. Interior noise has a lot to do with the type of vehicle and exhaust exit location .....a burb will have considerably more problems controlling interior resonance than a pickup. The large interior cabin space will amplify the sound coming from under the vehicle, where as a pickup, the sound is exited well behind the cabin space and is less of a problem. Dynamat at least the rear of your cab if resonance is a problem, and the whole cab floor if possible. The noise inside my ride is noticeable but not even close to being annoying .....no noticeable drone at all. Last edited by RUSHNBOBO; 10-28-2011 at 06:31 PM.

10-28-2011, 06:29 PM	#23
c1069 Registered User Join Date: Apr 2010 Location: McFarland CA Posts: 1,392	Re: What Muffler to use? No drone wanted. I'm not trying to hijack this thread, but someone has tried this brand http://thecoffinmuffler.com. Since they are local but I need to hear some comments about them. Anyone __________________ Pancho 69 c/10 step side 454/400 with 3.07



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10-28-2011, 06:48 PM	#24
webfoot Registered User Join Date: Nov 2007 Location: Hermiston, OR Posts: 947	Re: What Muffler to use? No drone wanted. You can listen to a lot of sound clips on magnaflow's website. http://www.magnaflow.com/04sound/04american.asp I like the 67 malibu clips. __________________ *Running in place gets you nowhere fast.* -me 1968 GTO 4-spd covnvertible 1970 K-20 4-speed, factory AC.

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