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#4711372 - 03/30/18 10:16 AM Exhaust recommendations
redhat Offline


Registered: 12/07/12
Posts: 1734
Loc: Anywhere, USA
I am trying to figure out what will sound good on a Carbed 4.8/5.3 LS going in my Regal.

Will have long tube headers, 1 3/4" to a 3" collector. I am thinking x-pipe to dual Flowmaster 40s?

Any suggestions?
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#4711378 - 03/30/18 10:20 AM Re: Exhaust recommendations [Re: redhat]
skyactiv Offline


Registered: 03/02/13
Posts: 4521
Loc: The Midwest
Make it a sleeper and use an exhaust cutout.
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#4711405 - 03/30/18 10:36 AM Re: Exhaust recommendations [Re: redhat]
WANG Offline


Registered: 01/08/08
Posts: 546
Loc: North Carolina
I usually prefer the sound of silencers that incorporate some sort of lagging in their design (example: Borla) compared to the sound of purely chambered silencers (example: Flowmaster).
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#4711421 - 03/30/18 11:01 AM Re: Exhaust recommendations [Re: redhat]
beanoil Offline


Registered: 10/17/04
Posts: 3006
Loc: Midwest, Illinois
The drone of Flowmasters will eventually wear on you.
Hooker makes a great performance muffler that doesn't get much advertising or attention.
Do some searching on AeroChamber's.
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#4711423 - 03/30/18 11:05 AM Re: Exhaust recommendations [Re: redhat]
glock19 Offline


Registered: 03/12/13
Posts: 784
Loc: Virginia
I've always liked Corsa exhausts.
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#4711432 - 03/30/18 11:17 AM Re: Exhaust recommendations [Re: redhat]
Olas Offline


Registered: 12/11/13
Posts: 3938
Loc: Manchester, England
Absorption type silencers have a far more agreeable timbre than reflection type silencers.
Your ears may vary.
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#4711456 - 03/30/18 11:36 AM Re: Exhaust recommendations [Re: redhat]
BrocLuno Offline


Registered: 09/06/15
Posts: 5625
Loc: Kalifornia Kollective
I would not put BlowMasters on anything. They usually have a bad resonant drone at 1,800 RPM - just where you cruise on the highway frown

I've removed them from the last two vehicles I got. Hard to even talk in the cab, much less listen to music ...

Dynomax makes some mufflers that will sound nice at idle up to 900 RPM and then they mellow out. You need to write and e-mail to Walker and ask them...


Edited by BrocLuno (03/30/18 11:37 AM)
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#4711468 - 03/30/18 11:49 AM Re: Exhaust recommendations [Re: redhat]
SOHCman Online   content


Registered: 03/29/10
Posts: 1336
Loc: USA
What about Magna-Flow straight through designs? I put the biggest one I could fit on a 351W truck with 2.5 inch 2 into 1 exhaust and it's much quieter and non-droning than I expected coming from a turbo style muffler that rusted out.
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#4711487 - 03/30/18 12:14 PM Re: Exhaust recommendations [Re: redhat]
Old Mustang Guy Offline


Registered: 11/16/05
Posts: 971
Loc: Rockwall, Texas
I used Flowmaster 40's on three different Mustangs and liked them. On one I got drone at 1800 to 2000. I would just downshift if it got tiresome. It was below cruising speed with 355 gears.

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#4711500 - 03/30/18 12:25 PM Re: Exhaust recommendations [Re: redhat]
The_Captain Offline


Registered: 08/06/12
Posts: 212
Loc: Upstate S.C.
I have Magnaflow on my ride. Sounds great with no drone.
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#4711502 - 03/30/18 12:25 PM Re: Exhaust recommendations [Re: redhat]
Bud_One Offline


Registered: 04/19/14
Posts: 1845
Loc: Spring,Texas
I've had good results with Magnaflow mufflers.
My brothers 5.3 Chevy and my 6.0 Chevy.
No drone at cruising speeds and not obnoxiously loud.
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#4711523 - 03/30/18 12:42 PM Re: Exhaust recommendations [Re: redhat]
mazdamonky Offline


Registered: 12/08/15
Posts: 561
Loc: Arkansas
I have a Magnaflow straight through on my RX7. It sounds great, but freeway drone is horrible. This is probably due to 70 MPH being 3500 RPM on this car. I love the sound when gassing it however. Exhaust is a short header, presilencer, straight back to muffler. I feel the need to add something like a resonator or glass pack in the straight section to see if it helps. I imagine if I wasn't at such high RPM all the time it wouldn't be so bad. Cruising in 5th at under 55mph isn't near as bad as over 60.
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#4711524 - 03/30/18 12:44 PM Re: Exhaust recommendations [Re: BrocLuno]
4WD Offline


Registered: 09/21/10
Posts: 6569
Loc: Texas
+1 on Dynomax … largest ID you can fit and they’ll flooooow …

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#4711562 - 03/30/18 01:41 PM Re: Exhaust recommendations [Re: redhat]
jeep58 Offline


Registered: 02/06/09
Posts: 42
Loc: ny
I like the Magnaflow "non chambered" muffler it will get a little louder after muffler breaks in but no drone nice mellow sound !

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#4711619 - 03/30/18 02:45 PM Re: Exhaust recommendations [Re: redhat]
14Accent Offline


Registered: 08/03/17
Posts: 433
Loc: MN
Check out Aero Turbine exhaust. There was a ton of love for those on the Marauder forms. I youtube'd a few Chevy trucks with them and they sound pretty decent. They are a "straight through" design I believe, and less money than the big boys.
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