How to tell the differnce in Muffler.??

[whyask]

Hey guys, I was cleaning out my garage today and found a pair of Flows with pipes sitting in my attic that I was holding for a friend, how in the world can tell what model they are. Thanks !!!

 

[sgarlic]

On the side where the outlet/inlet tubes are, there's a serial number.. You can hit up their website with that serial number and it'll tell you what series/application is was made for.

 

[whyask]

ROCK OUT with your C*** out ... Thanks Man