Originally Posted by Island_Moose

Is there a thread that details how the muffler is modified?

Originally Posted by Hammer Down

I've changed that set up and gone to a sound not even the C63 mufflers can produce.


https://youtu.be/wO2sfhL5vwI

Originally Posted by Hammer Down

We bypassed the u bend that goes into the main chamber so that the air flow goes straight into the first chamber and out through the two pipes that exit the muffler. In a stock muffler the sound gets muffled twice. This mod will cause it to only be muffled once. The sound is not only louder it's deeper than stock (SL55ish) I wanted to increase the sound without changing the M113 tone.