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Discussion Starter #1
Im trying to figure out which diameter to run. I am currently running with the secodary cats gutted and a custom x pipe but no mufflers. I had a set of borlas but i didnt like them. I am looking at a set of FM single chambers but i am unsure of the diameter. i know that all of them can fit but will running a 3" in/out change the sound at all?? I am going to dump them just before the axle so HELP PLEASE!!!
 

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FM mufflers aren't as good as say a flow through magnaflow because of the baffles, but if thats not a concern, then that will be fine...Most catback exhausts are 3" in/out and I hear that the larger diameter will make it sound deeper....3" is fine for the muffler, but don't run that size pipe before the y merge
 

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I dont have a y merge anywhere?? It is true dual all the way back to where the stock muffler was. it was a dual in single out. When i took off the stock muffler i had them replace it with the x pipe.
 
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