Quietest Free Flowing Muffler

BelueLX

Founding Member

Jul 10, 1999

1,195

1

0

Oct 24, 2004

#1

• Oct 24, 2004

• #1

I have Flowmaster 2-chambers with turndowns right at my rear axle (along with a Mac Off-Road h-pipe) and every time my girlfriend rides in the car with me she says "your car is too loud its giving me a headache." We dont ride in it often but I would like to make it quieter for that reason and also to attract less attention from local law enforcement (the bad kind of attention). What is a good quiet muffler that offers little or no restriction? Thanks,

Cody B

 

04sleeper

Founding Member

Jun 22, 2002

2,674

14

89

Dallas, TX

Oct 24, 2004

#2

• Oct 24, 2004

• #2

AXIStang said:

I have Flowmaster 2-chambers with turndowns right at my rear axle (along with a Mac Off-Road h-pipe) and every time my girlfriend rides in the car with me she says "your car is too loud its giving me a headache." We dont ride in it often but I would like to make it quieter for that reason and also to attract less attention from local law enforcement (the bad kind of attention). What is a good quiet muffler that offers little or no restriction? Thanks,

Cody B

Click to expand...

I switched from 2 chamber Flows to Dynomax Super Turbos and picked up 5 RWHP and 4 ft lbs. Also they are much quieter.
I was just looking for quieter when I got them but the extra HP was just a bonus.

 

willys1

Active Member

Dec 2, 2003

1,004

1

36

New Jersey

Oct 24, 2004

#3

• Oct 24, 2004

• #3

And also 3 chamber flow masters with tail pipes.You can put tail pipes on now,but 2 chambered flows drone like a b@sterd!!

 

04sleeper

Founding Member

Jun 22, 2002

2,674

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89

Dallas, TX

Oct 24, 2004

#4

• Oct 24, 2004

• #4

Yes. Definitely get tails.

 

Whytry91

New Member

Nov 26, 2002

321

0

0

Morrisville, NC

Oct 24, 2004

#5

• Oct 24, 2004

• #5

Magnaflow

 

jb89coupe

New Member

Sep 3, 2004

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CT

Oct 24, 2004

#6

• Oct 24, 2004

• #6

Sounds like it's time for a new girlfriend.

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Oct 24, 2004

#7

• Oct 24, 2004

• #7

sleeper - can you tell me exactly which Dynomax superturbos you used (part numbers or size/configuration)? Also, the power numbers you quote - no other changes were made at the same time? Was the power pickup only at peak? What happened at other parts of the curves? thanks...

 

04sleeper

Founding Member

Jun 22, 2002

2,674

14

89

Dallas, TX

Oct 24, 2004

#8

• Oct 24, 2004

• #8

Michael Yount said:

sleeper - can you tell me exactly which Dynomax superturbos you used (part numbers or size/configuration)? Also, the power numbers you quote - no other changes were made at the same time? Was the power pickup only at peak? What happened at other parts of the curves? thanks...

Click to expand...

I don't know the part numbers but they were 2 1/2 inch inlet and outlet. That was all that was done. No other changes were made. The flows were really old though. I think some of the baffles might have been rusted out. The power was at peak (4900) and the torque was at (3200) but stayed through the entire RPM range.

 

RydeOn

Licensed to Chill

Founding Member

Sep 26, 2000

6,273

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77

orange county, CA

Oct 24, 2004

#9

• Oct 24, 2004

• #9

Magnaflows with the stock H pipe is pretty quiet. Could almost pass for stock.

 

RydeOn

Licensed to Chill

Founding Member

Sep 26, 2000

6,273

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77

orange county, CA

Oct 24, 2004

#10

• Oct 24, 2004

• #10

jb89coupe said:

Sounds like it's time for a new girlfriend.

Click to expand...

Not really. His setup would drive me bananas also.

 

N

notchman90

New Member

Oct 7, 2004

87

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0

long isle, ny

Oct 24, 2004

#11

• Oct 24, 2004

• #11

my girl wont come anywhere near my car cause she says it makes her deaf and the smell of the exhaust is "gross". Works for me, she drives everywhere and i save on gas

 

dvs bullet

New Member

Feb 20, 2004

326

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0

Ontario, Canada

Oct 24, 2004

#12

• Oct 24, 2004

• #12

My girl got pissed when I had to take out my B-cam, she says my car sounds too plain, I guess I lucked out. Anyways back to the original question Go with a muff. that has a baffling to it Dyna max super turbos are good, I don't know if you have cats on or not but they calm it down too, go with a set of high flows though. Definately on of the biggest contributers are coming from the turn downs, the make the exhaust noise resonate through the cab, and you get alot of exhaust smell. Go with tails first, then go to others after seeing how it changes. my 2cents

 

Goldmember

Member

Oct 23, 2004

118

0

16

Southen California

Oct 24, 2004

#13

• Oct 24, 2004

• #13

If you want no sound at all get magnaflows with a catted x pipe. believe me its like having a stock exhaust.

 

jaidedeye

Member

Apr 4, 2004

627

0

16

Goldsboro nc

Oct 24, 2004

#14

• Oct 24, 2004

• #14

dynomax race bullets with tails...nice and quiet while cruising, free flowing and powerful sound wide open and zero drone in the car.....and cheap!!!!!

 

C

criticman

Member

Sep 7, 2003

723

1

16

Rome, GA

Oct 24, 2004

#15

• Oct 24, 2004

• #15

Magnaflow...I sound like stock until WOT.

It is great for coasting/cruising, but sounds really mean when I want it to.

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

6

99

Arkansas

Oct 24, 2004

#16

• Oct 24, 2004

• #16

jaidedeye said:

dynomax race bullets with tails...nice and quiet while cruising, free flowing and powerful sound wide open and zero drone in the car.....and cheap!!!!!

Click to expand...

I thought the race bullets were just flat-out loud ...or am I thinking of something else...

89sleeper - What were the temps and humidity the days you dynoed? That is interesting...

 

jaidedeye

Member

Apr 4, 2004

627

0

16

Goldsboro nc

Oct 24, 2004

#17

• Oct 24, 2004

• #17

my buddy has race bullets on his 2000 gt ....not loud at all

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

6

99

Arkansas

Oct 24, 2004

#18

• Oct 24, 2004

• #18

jaidedeye said:

my buddy has race bullets on his 2000 gt ....not loud at all

Click to expand...

Then I guess I'm thinking of something else...there is one muffler that is just really loud...it may have been the race spintechs?

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Oct 24, 2004

#19

• Oct 24, 2004

• #19

Based on all the comments (like above) about Magnaflows, I added one to my single system to quiet it down. Mine runs into a single 3" system aft of the head pipes. It's a 3" in/out centered outlets 18" long case in front of the axle running into another muffler (Spin Tech) behind the axle. The Magnaflow was MUCH louder than the SpinTech resonator I had in the same location before. It's way too loud - I'm back looking for mufflers again.

Just goes to show - you have to really compare apples to apples to know the outcome of these things. I was very disappointed in the ability of the Magnaflow to quiet things down in my application. It did virtually nothing.

 

RydeOn

Licensed to Chill

Founding Member

Sep 26, 2000

6,273

1

77

orange county, CA

Oct 24, 2004

#20

• Oct 24, 2004

• #20

According to GNN60GT500, the resident stangnet Magnaflow rep. He says that Magnaflow mufflers are not universal and they are specifically designed for sound and power on each application. This could be a reason why you arent getting your apples & apples comparison.