Big Gun Vortex Quiet Core (Type 2/5") Do you have ticked off neighbors? Are you scaring all the deer away? Well, if you are looking to quiet your exhaust down, you&#194;&#194;&#144;'ve come to the right place. The Vortex 2 insert can probably help. Reduces sound by approximately 6 - 8 decibels. Installs in minutes. Very slight noticeable power loss.