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Exhaust with no mufflers? #674498
04/19/10 09:57 AM
04/19/10 09:57 AM
Joined: Jan 2003
Posts: 2,165
Inver Grove Heights MN
7
74RR Offline OP
top fuel
74RR  Offline OP
top fuel
7

Joined: Jan 2003
Posts: 2,165
Inver Grove Heights MN
Anyone ever run headers and exhaust pipes without mufflers?

Re: Exhaust with no mufflers? [Re: 74RR] #674499
04/19/10 10:04 AM
04/19/10 10:04 AM
Joined: Jan 2003
Posts: 32,911
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 32,911
Grand Prairie,Texas
Yeah, but not for long. Way too noisy for me,the cops and the neighbors.

Re: Exhaust with no mufflers? [Re: 74RR] #674500
04/19/10 10:08 AM
04/19/10 10:08 AM
Joined: Jul 2009
Posts: 249
Sonora, CA
68X426 Offline
enthusiast
68X426  Offline
enthusiast

Joined: Jul 2009
Posts: 249
Sonora, CA
What you want are exhaust cutouts. Look at:

http://www.dougsheaders.com/prod/new/details.aspx?ID=137



The 12 Scariest Words in the English Language: We are here from the Government and we want to help you. 1968 Plymouth Road Runner, Hemi and much more 1968 Dodge Charger, 318 and not much else 1958 Dodge Pick Up, 383 and loud 1966 Dodge Van, Slant 6 and cool
Re: Exhaust with no mufflers? [Re: 68X426] #674501
04/19/10 11:30 AM
04/19/10 11:30 AM
Joined: Jul 2003
Posts: 4,761
Holland MI Ottawa
2
2boltmain Offline
master
2boltmain  Offline
master
2

Joined: Jul 2003
Posts: 4,761
Holland MI Ottawa
Loud pipes save mopar lives?......


Keep old mopars alive.
Re: Exhaust with no mufflers? [Re: 2boltmain] #674502
04/19/10 12:14 PM
04/19/10 12:14 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 '96 ram. cat kept it pretty quiet. wasn't as loud as some other trucks with flowmasters.


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: Exhaust with no mufflers? [Re: patrick] #674503
04/19/10 01:12 PM
04/19/10 01:12 PM
Joined: Nov 2004
Posts: 354
K
kielbasa Offline
enthusiast
kielbasa  Offline
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Posts: 354
I did, I love it.....the longer the pipes, the better it sounds - less clunkerlike. I particularly hate the sound of them dumping underneath - with tailpipes all the way back it'll have a tighter sound.
I always laugh inside when I hear people tell me how loud their ride is with "Flowmasters"....

Re: Exhaust with no mufflers? [Re: 74RR] #674504
04/19/10 01:30 PM
04/19/10 01:30 PM
Joined: Oct 2005
Posts: 8,853
Ontario, Canada
S
Stanton Offline
Don't question me!
Stanton  Offline
Don't question me!
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Joined: Oct 2005
Posts: 8,853
Ontario, Canada
Maybe its just me getting old but I think loud pipes are for a$$h0les! The whole "loud pipes save lives" thing is just someone's justification for being a public nuisance.

On a race car they make sense ... you've squeeezed every bit of power out of everywhere else and the last place id to free up exhaust flow. In any other application it makes no sense ... you need more power, find it elsewhere because unless its a racecar, you haven't built it to its limit!

Re: Exhaust with no mufflers? [Re: Stanton] #674505
04/19/10 04:20 PM
04/19/10 04:20 PM
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog Offline
Striving for excellence
Kern Dog  Offline
Striving for excellence

Joined: Feb 2010
Posts: 18,493
Granite Bay CA
My 67 dart has a unique system... I took a pair of AFU rusty flowmasters and removed the internal baffles, then welded them into the car with full tailpipes. The "mufflers" are now more like resonators. The car sounds decent to me.

Re: Exhaust with no mufflers? [Re: Kern Dog] #674506
04/19/10 04:46 PM
04/19/10 04:46 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
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Joined: May 2003
Posts: 15,487
Florida
I had headers and 2.5 pipes straight back no muffs on the mud truck

didnt sound to bad at idle and loud as hell on wot blast thru the mud

I mean REAL LOUD!

and when it was "scratchinfotraction" and moveing at a walking pace it was blistering loud at the bumper turning 6200 rpms and the 17/40s would be turning at around 80 mph on the low side in 4' of mud

I wont do it that way again,I will just stick headers thru the hood with some flappers on the colletors

plez run muffs on the street

Re: Exhaust with no mufflers? [Re: scratchnfotraction] #674507
04/19/10 09:15 PM
04/19/10 09:15 PM
Joined: Dec 2003
Posts: 5,314
Carstairs, Alberta, Canada
dave571 Offline
master
dave571  Offline
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Joined: Dec 2003
Posts: 5,314
Carstairs, Alberta, Canada
The pipes resonate the exhaust pulses, and with out mufflers, actually make it LOUDER.

Open headers are quiter than headers and pipes.

Cutouts are a good way to go, and are inexpensive.

In all honesty, I see less than .1 improvement running open vs through my 3" flowmasters with 2.5" tailpipes.

Re: Exhaust with no mufflers? [Re: 74RR] #674508
04/20/10 12:21 AM
04/20/10 12:21 AM
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA Offline
I Live Here
DAYCLONA  Offline
I Live Here

Joined: Dec 2007
Posts: 18,157
Mass
If you don't want mufflers, but need to acheive some back pressure in the system, opt for some Powerstick chambered tubes, closest thing to straight pipe, Summit has a selection of chambered tube pipes in stainless steel also...

5936115-melon9.jpg (30 downloads)
Re: Exhaust with no mufflers? [Re: DAYCLONA] #674509
04/20/10 12:37 AM
04/20/10 12:37 AM
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo Offline
Too Many Posts
DaytonaTurbo  Offline
Too Many Posts

Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
You will want something just for noise control. I ran open headers and the cops hassled me over it. At an idle/light throttle I thought it was quite reasonable, I think it was quieter than the average harley. I haven't decided whether I want to install the electric flapper doors or change to a complete 3" exhaust.

Re: Exhaust with no mufflers? [Re: DaytonaTurbo] #674510
04/20/10 06:42 AM
04/20/10 06:42 AM
Joined: Jan 2005
Posts: 4,862
the frozen wastes...
Pale_Roader Offline
Swears too much
Pale_Roader  Offline
Swears too much

Joined: Jan 2005
Posts: 4,862
the frozen wastes...

Some punk kid in my 'hood used to rip around being a menace in all sorts ov "hot" cars, though typically 5.0L Mustangs. Any time he got a new car he'd have his exhaust guy hack out the mufflers and weld in straight pipe. The cats got tossed as well. So i got to hear quite a few different V8 cars with full exhaust and no mufflers.

I gotta say they still pretty much sounded like [Edited by Moparts - Family Friendly Site - Keep it clean]. Its pretty difficult to make a 5.0L sound bad, but he did it. Loud it definitely was, but i didn't like it.

I dont mind loud cars, i own a few, but they gotta sound GOOD. Theres no excuse anymore. There are so many cool mufflers, and a billions different models, many no quieter than open pipes. Hell, the exhaust technology exists to build quiet full race exhaust systems now, manageable noise, no HP loss. But loud is still fun. Our 96GT has a very loud system, and its still lucky to make 225HP i bet... But it sounds SOOOO good... I WISH my Charger sounded so good...

Re: Exhaust with no mufflers? [Re: 74RR] #674511
04/20/10 08:17 AM
04/20/10 08:17 AM
Joined: Nov 2008
Posts: 5,951
Greenville, PA
redraptor Offline
master
redraptor  Offline
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Joined: Nov 2008
Posts: 5,951
Greenville, PA
Yep. Headers and straight out the top. Was only supposed to be temporary but sounded so good I left it that way. Only cost me a few bucks to get it inspected every year.

5936374-moparts.JPG (26 downloads)
Re: Exhaust with no mufflers? [Re: redraptor] #674512
04/20/10 08:45 AM
04/20/10 08:45 AM
Joined: Jan 2003
Posts: 9,436
Blair County,PA
62maxwgn Offline
master
62maxwgn  Offline
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Posts: 9,436
Blair County,PA
Quote:

Yep. Headers and straight out the top. Was only supposed to be temporary but sounded so good I left it that way. Only cost me a few bucks to get it inspected every year.




The guy must have been a friend.

Re: Exhaust with no mufflers? [Re: 62maxwgn] #674513
04/20/10 04:09 PM
04/20/10 04:09 PM
Joined: Jan 2005
Posts: 4,404
Michigan
MarkZ Offline
Worthy
MarkZ  Offline
Worthy

Joined: Jan 2005
Posts: 4,404
Michigan
The link in my signature gives an example of the difference between mufflers and headers with dumps. Even though the dumps are right under the front doors, I don't think plumbing out behind the bumper would make a lick of difference. It is loud!


1987 Fifth Avenue - 512/518/D60






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