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Old 03-27-2009, 03:29 PM   #1
maxreps
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What mufflers are you guys running?

I bought my 76 with flowmaster 40 series and they sound good but are a bit loud. Not to mention the drone that flows have... (no crossover yet but would like to get one installed however the driveshaft is in the way except at the rear axle) I thought about 50-60 series but if I'm gonna pay for new mufflers, it'd be silly to get the same brand if the drone bugs me. I thought about magnaflow but basically the design I saw was a straight through perforated pipe inside a "regular" looking case, so it's a glorified cherry bomb with more packing.

Basically looking for info about what you guys run and if you'd buy them again? Also, anyone seen a good comparison in a magazine or on a website between several different brands?


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Old 03-27-2009, 03:36 PM   #2
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Re: What mufflers are you guys running?

I'm currently running flowmasters on my '74 too and you do get tired of all the noise after a while. I'm thinking of switching to a turbo muffler i hear they're not as loud. I have a buddy that has a borla on his 2004 silverado with no cats and it sounds good i like it but borla is expensive.
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Old 03-27-2009, 03:59 PM   #3
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Re: What mufflers are you guys running?

I run Flowmaster 50 series Delta Flows. It's that Flowmaster sound, but turned down a notch and without the drone. In my setup, I have long tube headers, an H pipe, and the pipes exit under the rear bumper.

Not sure what your setup is, but if the exits are dumped right under the vehicle, this is a recipe for LOUD. The sound bounces around between the pavement and the underside of the vehicle and it end up being louder than it should. This also increases interior resonance by a good bit too.

Magnaflows are basically a better turbo muffler. Construction and muffling are the same, but instead of the "S" path, it's straight through. These are quiet at cruise and idle, but at full throttle they are pretty loud.
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Old 03-27-2009, 04:09 PM   #4
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Re: What mufflers are you guys running?

I've got Hooker Aero Chambers on my big block. Nice mellow tone at idle, no noticable drone at cruise, get comfortably loud at WOT.

http://www.holley.com/types/Aero%20Chamber.asp


http://www.holleytv.com/video_detail.php?mId=1598
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Old 03-28-2009, 12:32 AM   #5
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Re: What mufflers are you guys running?

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Originally Posted by 454HO View Post
I've got Hooker Aero Chambers on my big block. Nice mellow tone at idle, no noticable drone at cruise, get comfortably loud at WOT.

http://www.holley.com/types/Aero%20Chamber.asp


http://www.holleytv.com/video_detail.php?mId=1598
Thats what I'm running on my 04 Sierra.

Planning on running a Dynomax Bullet on the K5
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Old 03-28-2009, 03:39 AM   #6
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Re: What mufflers are you guys running?

40 series flowmasters, dumps LOUDLY right behind the cab.
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Old 03-27-2009, 04:11 PM   #7
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Re: What mufflers are you guys running?

Right now it's running stock manifolds(just bought a set of flowtech headers) and is 2.5" running all the way past the axle exiting on each side(pointing down but not near the ground-can't be seen from the rear) right behind the rear tires.

Haven't thought about Corsa.. I'll look into them. I have ran the Dynomax super turbo on my 71 240z, it was loud but prob is quieter than my 40's are now.

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Old 03-27-2009, 04:28 PM   #8
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Re: What mufflers are you guys running?

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Originally Posted by BruthaMan View Post
Not quite at that stage yet, but probably going to run Corsa. I had them on a C5 Corvette years ago and they sounded great at wot and very quiet at cruising speed (have noise canceling technology to get rid of that drone).

Don't think they make them specifically for our trucks, so will probably find a system on Ebay to chop the mufflers out and have them custom done at an exhaust shop.
Quote:
Originally Posted by maxreps View Post
Right now it's running stock manifolds(just bought a set of flowtech headers) and is 2.5" running all the way past the axle exiting on each side(pointing down but not near the ground-can't be seen from the rear) right behind the rear tires.

Haven't thought about Corsa.. I'll look into them. I have ran the Dynomax super turbo on my 71 240z, it was loud but prob is quieter than my 40's are now.


I have a corsa system on my 03 silverado and think its one of the best exhaust systems out there, IMO. And I have read that they make a universal style muffler, and have seen them on the jegs website......

http://www.jegs.com/p/Corsa/964933/10002/-1

I'm pretty sure they make them for a larger diameter exhaust as well.
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Old 03-27-2009, 05:49 PM   #9
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Re: What mufflers are you guys running?

Quote:
Originally Posted by maxreps View Post
Right now it's running stock manifolds(just bought a set of flowtech headers) and is 2.5" running all the way past the axle exiting on each side(pointing down but not near the ground-can't be seen from the rear) right behind the rear tires.

Haven't thought about Corsa.. I'll look into them. I have ran the Dynomax super turbo on my 71 240z, it was loud but prob is quieter than my 40's are now.
i was running stock manifolds into dual 2.5 inch pipes then dual 40 series flowmasters right under the cab and 3inch dumps right and the cab/bed split and it was very loud and had that drone at cruising speed. now i changed to flowtech long tube headers and ran the mufflers out under the bed and it now dumps right in front of the axle , and it sounds much better it is a little quieter and has an actually tone not just a droning sound.
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Old 03-27-2009, 06:35 PM   #10
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Re: What mufflers are you guys running?

I am sure that the setup doesn't help things either since I cruise at 3100-3200 rpm @ 60mph... I really need to put in a 700R4! I've calculated that'd put me about 2200 @ 60mph.
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Old 03-27-2009, 04:19 PM   #11
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Re: What mufflers are you guys running?

has any one bought any of the cheap ebay dual muflers ? High Performance 2 Chamber Muffler 2.5" C/ 2.25" DUAL,[ Item number: 330317195348] or a OBX Muffler KV5014 Dual-in Dual-out ? [ Item number: 170314912375 ]

if so do they sound good ?
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Old 03-27-2009, 03:46 PM   #12
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Re: What mufflers are you guys running?

I have the Summit 2 1/2" Turbo mufflers on my '85. They're the $17 mufflers in the catalog. They sound pretty good but when I redo the truck this summer I'm going to put 50 series Flowmaster's on it.

If I want to cruise qiuetly, I'll just drive my honda.
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Old 03-27-2009, 03:49 PM   #13
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Re: What mufflers are you guys running?

Not quite at that stage yet, but probably going to run Corsa. I had them on a C5 Corvette years ago and they sounded great at wot and very quiet at cruising speed (have noise canceling technology to get rid of that drone).

Don't think they make them specifically for our trucks, so will probably find a system on Ebay to chop the mufflers out and have them custom done at an exhaust shop.
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Old 03-27-2009, 05:05 PM   #14
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Re: What mufflers are you guys running?

On my 85 I'm running two cherry bomb extremes (1 chambers) turned down before the axle. It sounds great and is very loud, both inside and outside, but I dont care, I'm a kid and it doesnt bother me. If you want it quieter than I would reccomend Maganflow or Hooker's Aerochambers. They both have a more "mellow" tone but still sound great.

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Old 03-27-2009, 05:11 PM   #15
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Re: What mufflers are you guys running?

i always use 2 1/2" in/out 40 series flowmaster mufflers b/c i like the agressive tone myself

i got a truck awhile back that had two turbo mufflers on it, they sounded good though, but i had to take them off to put on some FM's
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Old 03-27-2009, 05:19 PM   #16
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Re: What mufflers are you guys running?

My 84 has stockers on it, but will get a custom 3" with a diesel muffler later this year.
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Old 03-27-2009, 05:26 PM   #17
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Re: What mufflers are you guys running?

50 series flowmaster delta flow and an x pipe. still sounds like flowmasters but no real quiet in the cab.
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Old 03-27-2009, 06:31 PM   #18
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Re: What mufflers are you guys running?

I ran 2.5: spntechs on my car... never droned well at least less than my blowmaster 50's... it was dumped too..

but I'll be running 3" ones on the truck... they sound good..
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Old 03-27-2009, 06:36 PM   #19
maxreps
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Re: What mufflers are you guys running?

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I ran 2.5: spntechs on my car... never droned well at least less than my blowmaster 50's... it was dumped too..

but I'll be running 3" ones on the truck... they sound good..

Where'd you buy yours from Summit, Jegs, etc ?
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Old 03-27-2009, 10:08 PM   #20
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Re: What mufflers are you guys running?

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Where'd you buy yours from Summit, Jegs, etc ?
nope... um.. gofastparts.com took a couple weeks.. but it's the only place i could find, summit doesn't have them, nor jegs, or anyone local.
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Old 03-27-2009, 10:38 PM   #21
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Re: What mufflers are you guys running?

Single 3" w/40 series Flowmaster & no cat!
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Old 03-27-2009, 10:55 PM   #22
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Re: What mufflers are you guys running?

My black truck is running a 2.5" dual exhaust that exits behind the rear wheels . It had 40 series flows but I switched it to 50 series . I like the sound better now . The 40's were OK but not for this truck . I will probably run 40 series on my next truck because it wont be a stock engine cruiser .
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Old 03-27-2009, 06:46 PM   #23
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Re: What mufflers are you guys running?

I have flowmaster 40's on my truck and they are loud! THey are dumped under the truck and they suck. Makes the whole truck vibrate at certain RPM's.

I am going to try and find a muffler called Mello Tone. I have had some before on a old buick and it sounded great and made a noticeable difference over stock.

I don't live near the shop that sold them and haven't found them online.
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Old 03-27-2009, 07:50 PM   #24
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Re: What mufflers are you guys running?

i have flowmaster original 40's.i wanna be loud and obnoxious.i have the cab dynamatted big time.so,i don't notice the droan,plus i'm hard of hearing from 31yrs of working in the paper mill.so,it all work's out.
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Old 03-28-2009, 10:44 PM   #25
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Re: What mufflers are you guys running?

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i have flowmaster original 40's.i wanna be loud and obnoxious....snip.... i'm hard of hearing from 31yrs of working in the paper mill.so,it all work's out.
Very cool. The link below is a 72 I built and sold. I am working on the "combo truck" right now. Many year's parts....Just put 40's on it, too. As a matter of fact, today I just sold a set of 40's with 50 miles on them for 80 bucks.....


I'm a fan of Flowmasters. But, then again, the truck is not my primary transportation. When we go off into the sunset, we take the wife's Japanese car.....I think she's running Nissan Morano exhaust.

If I'm tripping around by myself, I drive the Jeep. Six banger geared to drive up a flagpole, and get out of the way of faster traffic once I'm up to highway speed. Works for me. Nothing's as good as driving the truck......You guys know that.

Well, I guess if I had a 34 Ford Vickie with a 350/700R/air/electric windows, satellite radio, etc......
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