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Anyone running four mufflers?? #1196806
03/14/12 09:10 AM
03/14/12 09:10 AM
Joined: Jan 2010
Posts: 509
Middle River, MD
M
Mapandjlp Offline OP
mopar
Mapandjlp  Offline OP
mopar
M

Joined: Jan 2010
Posts: 509
Middle River, MD
I've got 40 series Flowmasters on my '70 Challenger where the stock resonators would be. I'd like it to be just a bit quieter and was thinking of adding some small round mufflers, maybe glass packs, where the stock mufflers would be on either side of the fuel tank between the over-the-axle pipes and the tips. Has anyone done this? Did it help? What are the pros and cons??

As always, thanks for your input!

Re: Anyone running four mufflers?? [Re: Mapandjlp] #1196807
03/14/12 12:28 PM
03/14/12 12:28 PM
Joined: Jan 2007
Posts: 780
Woodinville, WA
Viol8r Offline
super stock
Viol8r  Offline
super stock

Joined: Jan 2007
Posts: 780
Woodinville, WA
I run (4) mufflers. The fronts are Dynomax Super turbos. The rears are Dynomax bullets. Full 3", X-pipe exhaust. Knocks 3 to 5 dec's off and it was worth it to me.

Making 550hp, but I do like to take it out and quite often, and just needed to knock the sound down a little. It has nice smooth sound now, no drone. For cars with full exhausts, I do not believe there is any drawback. It comes down to preference. The car is still mean sounding. I have electronic cut-outs for the track.


1968 Pro-Touring Dodge Charger
*2011 Optima Ultimate Street Car Challenge Invitee
http://www.popularhotrodding.com/features/1203phr_1968_dodge_charger/index.html
Re: Anyone running four mufflers?? [Re: Viol8r] #1196808
03/14/12 12:50 PM
03/14/12 12:50 PM
Joined: Jan 2003
Posts: 5,891
Athens, Greece
Pyper70 Offline
master
Pyper70  Offline
master

Joined: Jan 2003
Posts: 5,891
Athens, Greece
I knew a guy in College who had the two flowmasters underneath...50 series...and then they came UP over the rear diff and into the trunk area and he installed two more Flowmasters in there behind each wheel well and then sent the exhaust down through a 90º bend and out of the rear quarters...

Strangest thing I had ever seen for exhaust routing. I dunno why he did all that...Car was a sleeper but annoying as heck if you were a passenger.

Car was a 66 Chevy Malibu or something


Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
Re: Anyone running four mufflers?? [Re: Pyper70] #1196809
03/14/12 01:04 PM
03/14/12 01:04 PM
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick Offline
I Live Here
patrick  Offline
I Live Here

Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
on my old car's big single, I ran a 3" dynomax large body muffler in the stock location, and a 3" glasspack in the tail pipe. quieted it down a little on the outside, really helped with interior drone and resonance from the drivers seat. go for it, I think you'll like the results


1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
Re: Anyone running four mufflers?? [Re: Viol8r] #1196810
03/15/12 12:05 AM
03/15/12 12:05 AM
Joined: Jan 2003
Posts: 12,028
Benton, IL.
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DaveRS23 Offline
Special needs idiot
DaveRS23  Offline
Special needs idiot
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Joined: Jan 2003
Posts: 12,028
Benton, IL.
Quote:

I run (4) mufflers. The fronts are Dynomax Super turbos. The rears are Dynomax bullets. Full 3", X-pipe exhaust. Knocks 3 to 5 dec's off and it was worth it to me.

Making 550hp, but I do like to take it out and quite often, and just needed to knock the sound down a little. It has nice smooth sound now, no drone. For cars with full exhausts, I do not believe there is any drawback. It comes down to preference. The car is still mean sounding. I have electronic cut-outs for the track.




Hey, that's my set-up exactly! And the bullets out back really knock down the drone.


Master, again and still
Re: Anyone running four mufflers?? [Re: DaveRS23] #1196811
03/15/12 09:06 AM
03/15/12 09:06 AM
Joined: Jan 2003
Posts: 2,521
Richmond Va, KeislerTKO 60...
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VanishPt Offline
master
VanishPt  Offline
master
V

Joined: Jan 2003
Posts: 2,521
Richmond Va, KeislerTKO 60...
I run 2 Dynomax super turbos under the seat and 2 ultraflows by the tank. Nice and quiet. lets me listen the the 70's music

http://www.youtube.com/watch?v=W1zMriXY5Ik&feature=email







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