Flowmaster help!

[U2SLO450]

Does anyone know how to indentify the different types of flowmasters? i had a set already installed on one of the mustangs i bought and im trying to figure out if they are original 2 chambers or not. They have a little rumble but not as much as some other mustangs that ive heard. I think that they may be the deltaflow ones. I asked the guy that owned the car before me and he said he didn't really know all he knew was that he purchased a cat-back

 

[90_Red_LX]

If it's fairly new it's definetly delta flow. If not theres probably a number or it's marked somewhere on the muffler.

 

[U2SLO450]

there is a number on there that i can see(4574914) but it still doesn't help much. the mufflers have been on the car for about 6 years

 

[ryan218]

there is a number on there that i can see(4574914) but it still doesn't help much. the mufflers have been on the car for about 6 years

6 years? its not like its new. rip it off and order a new system for the car.

 

[habiv]

Does the car have the stock h-pipe or has that been modified? My car has an american thunder cat back w/an h-pipe with high flow cats. A friend of mine has a5.0 with the delta flow cat back and an off road h-pipe and it sounds almost identical to my car.

Here is a video of my car with an american thunder cat back (2 chamber) and an h-pipe with high flow cats. Does this sound like yours?

http://videos.streetfire.net/video/90a9be6c-c7a7-4eb0-aa2c-986401457b59.htm

 

[MyBad70]

6 years? its not like its new. rip it off and order a new system for the car.

lmao
everythings so simple when youre 14

 

[U2SLO450]

Does the car have the stock h-pipe or has that been modified? My car has an american thunder cat back w/an h-pipe with high flow cats. A friend of mine has a5.0 with the delta flow cat back and an off road h-pipe and it sounds almost identical to my car.

Here is a video of my car with an american thunder cat back (2 chamber) and an h-pipe with high flow cats. Does this sound like yours?

http://videos.streetfire.net/video/90a9be6c-c7a7-4eb0-aa2c-986401457b59.htm

mine doesn't quite sound like that, mines got more of a deep bass sound to it, i'm going to get new mufflers but i want original 40's i don't want to buy the same ones that i already have.

 

[PoopDawg]

The number that you found on the muffler is a Patent number.

http://www.freepatentsonline.com/4574914.html

There should be other numbers to show the part #

Nick