Exhaust way too quiet

S

STP72

New Member

Nov 11, 2006

109

0

0

Apr 6, 2008

#1

• Apr 6, 2008

• #1

Magnaflow catback with stock cats is way too quiet for me. What can I do to make this thing sound like a real mustang. Emission tested here every 2yrs so catless is a no no. An option I am thinking about is cutting off the magnaflows and some other mufflers. What do you guys recommened? sound clips would help also. Or maybe buying a used stock H pipe gutting the cats and installing that. Then when its emission testing time put the cats backs on? What do the sound like catless?

Cheers

 

dcurtis

10 Year Member

Jan 19, 2006

688

7

39

Apr 6, 2008

#2

• Apr 6, 2008

• #2

I say put on some flowmasters, or some spintechs, even though every one and their sister has flowmasters.( I love my flows) And as far as the emissions testing goes you can swap out your stock H pipe for a catless one in about 30 minutes, just put the catted one in before testing

 

87foxstang

Member

May 10, 2007

0

0

16

Cromwell, CT

Apr 6, 2008

#3

• Apr 6, 2008

• #3

+1. I use a catless pipe, and when emissions rolls around I throw the catted pipe on and have no problems

 

dcurtis

10 Year Member

Jan 19, 2006

688

7

39

Apr 6, 2008

#4

• Apr 6, 2008

• #4

87foxstang said:

+1. I use a catless pipe, and when emissions rolls around I throw the catted pipe on and have no problems

Click to expand...

87 foxstang, when are you going to get a new signature pic with your new headlights?

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

1,598

223

Northern KY

Apr 6, 2008

#5

• Apr 6, 2008

• #5

I would get either Mac or Spintech, but i have the Magnaflows and i can tell you without a doubt that the quietness is because of your cats. They are quiet at an idle but at WOT they scream.

 

S

STP72

New Member

Nov 11, 2006

109

0

0

Apr 6, 2008

#6

• Apr 6, 2008

• #6

I like the sound of the magnaflows under hard acceleration. But at low rpm they are quiet. I would put on a cat less H pipe but I have seen cops here use a mirror to look for Cat less systems. If I got a stock H pipe and gutted the cats would It be a little louder? I would just put my catted H pipe on every other year for emission testing. As long as the cats appear there I am safe haha

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

15 Year Member

Nov 11, 2003

6,945

1,598

223

Northern KY

Apr 6, 2008

#7

• Apr 6, 2008

• #7

Yeah they'd basically be offroad except they wouldn't flow as well.

 

SteedaGT9150

Advanced Member

Nov 10, 2004

1,351

59

68

Maryland

Apr 6, 2008

#8

• Apr 6, 2008

• #8

theres a clip in my sig, it kinda sucks but it does the job

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,249

17,932

224

Massachusetts

Apr 6, 2008

#9

• Apr 6, 2008

• #9

Buy an aftermarket high-flow cat H-pipe

 

SuperStang83

Founding Member

Mar 21, 2001

1,693

0

49

Boyertown, Pa

Apr 6, 2008

#10

• Apr 6, 2008

• #10

Get rid of the cats, but it'll sound real good when you get HCI.

 

mustanggirrl

No matter where I go, it's like everyone's like, "

Dec 12, 2007

26

0

0

lacey, nj

Apr 6, 2008

#11

• Apr 6, 2008

• #11

i just cut up my new stock exhaust & my friend gave my slp muffs & i just made it dump & i have cats on it bc they do inspection every 2 yrs here too... & mines legal

 

S

svtpower

New Member

Apr 30, 2005

257

0

0

Wisconsin

Apr 6, 2008

#12

• Apr 6, 2008

• #12

Magnaflow

How long have you had them for? I've had them on my last 2 Mustangs and I love them personally. Not obnoxious, just a nice deep, clean sound.

The reason I ask is because they will "break-in" and get louder after you run them for about 500 miles or so. Not a ton louder, but noticable.

A cheap thing you can do is get a cold air intake, that will make your exhaust a little louder.

I would not gut a perfectly good catted midpipe. Your cheapest, easiest option is just to get some louder mufflers and bolt them into your Magnaflow catback.

One last word about Magnaflows, they don't drone inside the car so it makes you think they are not that loud while you are driving. Have a buddy drive your car down the street while you stand on the sidewalk and listen... You will be suprised as to how loud they really are being outside the car.

 

S

STP72

New Member

Nov 11, 2006

109

0

0

Apr 6, 2008

#13

• Apr 6, 2008

• #13

There is about 1000 miles or so on them.. I do like the sound of them, just wish they were abit louder. And with an AOD they dont get a chance to howl also. SHift kit and gears are next.Maybe that will help in the rpms to make them howl

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Apr 6, 2008

#14

• Apr 6, 2008

• #14

sawzall it off right after the o2's

 

85Vertible

New Member

Jun 1, 2007

41

0

0

Apr 6, 2008

#15

• Apr 6, 2008

• #15

Go to classic chambered exhaust on the net and get the 20" powersticks. You wont be sorry.....

 

Beasty306GT

Active Member

Dec 19, 2002

671

4

28

Oxford,Mass

Apr 6, 2008

#16

• Apr 6, 2008

• #16

get rid of the cats....get your self an offroad x-pipe and some flowmasters then ull be lovin it.

 

S

STP72

New Member

Nov 11, 2006

109

0

0

Apr 6, 2008

#17

• Apr 6, 2008

• #17

if my car was a stick it would howl pretty good. I am thinking about the Xpipe
but keeping the magnaflows, since they are fairly new and stainless steel.
Any have an xpipe with magnaflows? and mac shorties

 

tmoss

Gettin Wired

Founding Member

Jun 28, 2001

7,153

32

128

Saint Louis, MO

Apr 8, 2008

#18

• Apr 8, 2008

• #18

STP72 said:

There is about 1000 miles or so on them.. I do like the sound of them, just wish they were abit louder. And with an AOD they dont get a chance to howl also. SHift kit and gears are next.Maybe that will help in the rpms to make them howl

Click to expand...

I'll trade you my flowmasters for em...................

 

Darkwriter77

Resident Ranting Negative Nancy

5 Year Member

Jul 1, 2005

314

281

134

Apache Junction, AZ

Apr 8, 2008

#19

• Apr 8, 2008

• #19

People will throw around all sorts of brand names in trying to tell you the "best" sounding cat-back ... but let me tell you, it doesn't matter what brand/style/design of cat-back you've got, if you're running the stock H-pipe with four cats, IT WILL ALWAYS BE QUIET. Hell, you could run straight pipes and it'd still sound pretty mellow with the stock four cats on there. Even an aftermarket cat'ed X- or H-pipe with two cats really kills the sound level.

IF YOU WANT A LOUDER EXHAUST, YOU NEED AN OFF-ROAD X- or H-PIPE.

I'd invest in one of those FIRST before you go replacing your cat-back. See how you like the sound with just a different crossover pipe without cats, and THEN if you think it's too quiet or tame or whatever, start shopping for a new cat-back.

 

tmoss

Gettin Wired

Founding Member

Jun 28, 2001

7,153

32

128

Saint Louis, MO

Apr 8, 2008

#20

• Apr 8, 2008

• #20

Darkwriter77 said:

... but let me tell you, it doesn't matter what brand/style/design of cat-back you've got, if you're running the stock H-pipe with four cats, IT WILL ALWAYS BE QUIET.

Click to expand...

I have a stock H with low miles and flowmasters with 1 5/8 shorty headers. Mine is anything but quiet. I have neighbors tell me they can hear the rumble of my exhaust inside their house when I ease out of my driveway in the morning. Fortunately for me, they like the mellow sound.