163 and Motormouth Maul sound very similar on the air. I have a hard time telling them apart sometimes. In that recording he was walking all over Motormouth Maul. So this is just his bad ass fine tuned stock radio with no amplifier with fedlity up there with Motormouth Maul? Has anyone been in his shop and seen what he is talking on? He doesn't show his full setup in his videos from what I have been able to find.