Got rid of the Flowmasters...

'66 coupe

Founding Member

Aug 7, 2000

1,202

9

59

Lakeland, Fl.

Mar 1, 2007

#1

• Mar 1, 2007

• #1

Just got my BBK shorties, and MAC catback bolted on. The car sounds SO much better. I was happy with the MAC's on my V6, so I knew they'd sound good on the 5.0.

Funny thing is the old catback was making a rattling sound on the passenger side. Since it was just Flowmasters with the stock 2.25 pipes, and Ford hangers welded on, I thought one of the hangers brokes free and was rattling.
When I got under the car the hangers were still on fine. But when I cut the catback in half, and removed it I noticed the mufflers were rattling. In both mufflers, the baffling(or fins in the Flowmasters) broke loose and is rattling around inside.
Now, I don't know how old the mufflers are since they were on the car when I bought it; but I didn't like Flowmasters before I bought the car, and now I definately don't like them.

 

The Green GT

No 13 year olds are safe around me.

10 Year Member

Jan 8, 2006

1,269

19

99

Louisiana

Mar 1, 2007

#2

• Mar 1, 2007

• #2

All mufflers do that. Its called "breaking in"

Atleast all chambered mufflers i know of do it.

 

'66 coupe

Founding Member

Aug 7, 2000

1,202

9

59

Lakeland, Fl.

Mar 1, 2007

#3

• Mar 1, 2007

• #3

Wait...so you're saying those fins inside are SUPPOSED to break off and rattle, making the exhaust sound like ass? That doesn't sound right.
I can actually touch the broken fins when they fall by the outlet.

The Mac catback I got was used for ~5k miles, and it doesn't rattle.

 

The Green GT

No 13 year olds are safe around me.

10 Year Member

Jan 8, 2006

1,269

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99

Louisiana

Mar 1, 2007

#4

• Mar 1, 2007

• #4

Well they arent supposed to but all mufflers will eventually.

 

'66 coupe

Founding Member

Aug 7, 2000

1,202

9

59

Lakeland, Fl.

Mar 1, 2007

#5

• Mar 1, 2007

• #5

The Green GT said:

Well they arent supposed to but all mufflers will eventually.

Click to expand...

Ah...gotcha.

Funny thing is, my car was quieter than both of my roommate's 4.6 Mustangs w/ Flowmasters. Don't know if the broken baffling made it quieter, or if the stock 2.25" piping was to blame. Now it definately sounds better than their cars...just like a 5.0 should.

 

Pokageek

Active Member

Jun 10, 2005

2,767

0

46

MA, USA

Mar 1, 2007

#6

• Mar 1, 2007

• #6

Thanks for the info. I did not know mac was any good.

 

droptopford 5 0

Member

Mar 31, 2005

427

0

17

Mar 1, 2007

#7

• Mar 1, 2007

• #7

ya, macs are great, however i like flowmasters too and if it werent for flowmasters sounding kinda mellow in the upper rpms compared to others (like mac) i probably would have looked no further than flowies. glad to see we have another satisfied mac user

 

'66 coupe

Founding Member

Aug 7, 2000

1,202

9

59

Lakeland, Fl.

Mar 1, 2007

#8

• Mar 1, 2007

• #8

droptopford 5 0 said:

ya, macs are great, however i like flowmasters too and if it werent for flowmasters sounding kinda mellow in the upper rpms compared to others (like mac) i probably would have looked no further than flowies. glad to see we have another satisfied mac user

Click to expand...

The only reason I don't like Flowmaster is because everyone and their brother uses them, despite there being better mufflers out there for the same price(like MAC).
I may have to get Borlas for my '66 though, since I don't need both cars sounding the same.

BTW, Your car sounds like it looks just like mine. Do you have any pics? I'd like to see the Chin Spoiler.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Mar 2, 2007

#9

• Mar 2, 2007

• #9

I also love the Mac catback. It's so much deeper than Flowmasters IMHO.

The flows (to my ear) are a lot higher pitch and hallow sounding - not my thing especially.

 

Adam95GT

New Member

Aug 14, 2006

2,564

3

0

Burlington, NJ

Mar 2, 2007

#10

• Mar 2, 2007

• #10

Hmmm ive always loved the sound of a 40 series... i ran one on the probe and it gave exclent sound... the custom exhaust shop i took it to said it would sound to tinney and told me not to do it... i went with the flows and got a great sound... i like the american thunder i have on the stang... its got a nice tone but is quiet up top... glad to hear you finally got the sound you wanted!

 

1TallMF

New Member

Apr 17, 2006

955

1

0

Montreal

Mar 2, 2007

#11

• Mar 2, 2007

• #11

The catbacks are one of the only Mac products that are actually worth a look. I don't know how old mine is since it came with the car, but idle is nice and deep but not too loud and WOT sounds damn nice. My only complaint is the excessive drone.... chicks don't like cars that drone on the inside . Once I get under the car this spring I will judge wheather or not to replace it since it looked pretty rusty last time I was under there. It'll be a Magnaflow system next time

 

Pokageek

Active Member

Jun 10, 2005

2,767

0

46

MA, USA

Mar 2, 2007

#12

• Mar 2, 2007

• #12

I got rid of the drone with delta flow 50 series flo's fyi..

 

Therian

The Highlander

Founding Member

Apr 21, 2002

0

1

0

Waterloo, Ontario

Mar 2, 2007

#13

• Mar 2, 2007

• #13

my exhaust sounds amazing...

I need to take a video sometime

LTs + hiflow catted h + flows

 

fiveoho

15 Year Member

Apr 28, 2005

1,958

16

69

TN

Mar 2, 2007

#14

• Mar 2, 2007

• #14

it was a toss up between Macs and Spintechs when i changed from flows. i went with spintechs and love 'em. still curious what the macs would have sounded like tho...

 

The Green GT

No 13 year olds are safe around me.

10 Year Member

Jan 8, 2006

1,269

19

99

Louisiana

Mar 2, 2007

#15

• Mar 2, 2007

• #15

If you want flowmasters but dont want the drone get some Hooker Aero Chambers. I have them and they sound alot like a 40 Series.

 

WhiteDevil

New Member

Feb 4, 2003

2,717

0

0

San Diego

Mar 2, 2007

#16

• Mar 2, 2007

• #16

I love my MAC catback sounds much better than my old Flow set up. But mine is now rusting out after 4 years. So im going to go with a magnaflow set up next.

 

'94ChickStang

Member

Sep 27, 2004

301

0

17

northern ca

Mar 2, 2007

#17

• Mar 2, 2007

• #17

love my flows.....especially the drone

I might try some Magnaflows when they're dead though, always interested in what it'd sound like without the chambers

 

SQUEEZE&STROKE

New Member

Jun 24, 2005

0

0

0

SOUTHERN CA

Mar 3, 2007

#18

• Mar 3, 2007

• #18

'66 coupe said:

Just got my BBK shorties, and MAC catback bolted on. The car sounds SO much better. I was happy with the MAC's on my V6, so I knew they'd sound good on the 5.0.

Funny thing is the old catback was making a rattling sound on the passenger side. Since it was just Flowmasters with the stock 2.25 pipes, and Ford hangers welded on, I thought one of the hangers brokes free and was rattling.
When I got under the car the hangers were still on fine. But when I cut the catback in half, and removed it I noticed the mufflers were rattling. In both mufflers, the baffling(or fins in the Flowmasters) broke loose and is rattling around inside.
Now, I don't know how old the mufflers are since they were on the car when I bought it; but I didn't like Flowmasters before I bought the car, and now I definately don't like them.

Click to expand...

Glad to hear you like them

I meant to PM you to see if everything went well...how did the coating on the headers hold up during shipping?


I'm glad you like the Mac catback as well...when I had it on my car, it would stand out at the track because it didnt have flowmasters on it!

There was actually a car that was identical to mine...down to the engine mods...the only way people could tell them apart was the sound of my exhaust...well, that and my car went 11's, not 12's like his

 

'66 coupe

Founding Member

Aug 7, 2000

1,202

9

59

Lakeland, Fl.

Mar 5, 2007

#19

• Mar 5, 2007

• #19

SQUEEZE&STROKE said:

Glad to hear you like them

I meant to PM you to see if everything went well...how did the coating on the headers hold up during shipping?


I'm glad you like the Mac catback as well...when I had it on my car, it would stand out at the track because it didnt have flowmasters on it!

There was actually a car that was identical to mine...down to the engine mods...the only way people could tell them apart was the sound of my exhaust...well, that and my car went 11's, not 12's like his

Click to expand...

The coating held up good. Now that they've been heated I don't see any flaking or anything.

 

SQUEEZE&STROKE

New Member

Jun 24, 2005

0

0

0

SOUTHERN CA

Mar 6, 2007

#20

• Mar 6, 2007

• #20

Good to hear, I am glad you are happy with them!