DragonPL

Watching youtube videos I noticed that Mustangs that only had axle-backs swapped make that farting popping sound, where others that besides the mufflers have other stuff done, mid pipes, x pipes etc. don't do that just after starting up and revving up. Is there something to it?????????? My MRT muffler on the V6 was -farting- for about 2 min after starting up, than after it warmed up it was ok

2007VistaBlueGT

They all do it, I have an X-pipe with JBA mufflers and I still get a popping noise but it's hardly noticeable, the louder the muffler you buy the louder the "farting".