LeoVince Motorcycle Exhaust DB Killer On-Off - KTM DUKE 390 2015 - comparison on idle

Full exhaust system - LeoVince Nero was mounted on KTM Duke 390.
This is a comparison on idle between the sound of the exhaust with and without the DB Killer while the bike is idling.
The difference is mostly in the lower frequencies, so bass capable device is recommend. Sound output from a mobile would show almost no difference between the db killer being on, or off the exhaust.

[@carguy792]

Which exhuast is this ?