flowmaster help

[99grandmarquis]

i got a pair of flowmasters off a mustang that got in a crash off my brother i was wondering how to tell what type of flowmaster they are because i dont see anything like that says like 40's or any other types of flowmasters so if u know a way how to ident them post . thanks

[visionmercury]

on one of the ends will have a 5 or 6 digit number any any think starting with 9 is a delta flow . if you find a number post it i can brake it down for you or you can go to there site too

[99grandmarquis]

ok i got the pat number its 14574.914

[99grandmarquis]

the one on the side is 14574.914 if thats the right 1 i hope

[1987cp]

Doesn't look offhand like a Flowmaster part number .... not that I know that much about Flowmasters. Only "14574" exhaust part I'm coming up with at Summit Racing is a Corsa exhaust system for a Toyota Tundra.

Do you happen to know the inlet and outlet diameters and whether it was intended as a direct-fit replacement for the Mustang? And what year Mustang was it?

Also, if you look at the outside of the case very carefully, you may be able to see slight ridges where the internal elements were welded in. This can sometimes help identify a Flowmaster model.

[chitownvic]

It would say flowmaster on the case itself as well

[1987cp]

True! I guess there are several brands now that offer a Flowmaster-like chambered muffler that sound and look somewhat similar. Summit, Cherry Bomb and Thrush are three that come to mind, and I'm pretty sure there are at least one or two less-known ones as well.