Which Loudmouth is which?
The straight through muffler is the LM1 muffler.
The LM2 muffler will have a more refined tone & be slightly quieter.
Neither sound good without cat converters, IMO.
They are the same length so that they are interchageable.
Loudmouth 1 = Resonator w/ straight through design.
What SLP told you is right, i have the LM2 on my Camaro and had it on my totaled Z28. They both look just like the one with the holes in it and both muffler/resonators can be switched on either system.
Loudmouth 1 = Resonator w/ straight through design.
What SLP told you is right, i have the LM2 on my Camaro and had it on my totaled Z28. They both look just like the one with the holes in it and both muffler/resonators can be switched on either system.

