Do you have ticked off neighbors? Are you scaring all the deer away? Well, if you are looking to quiet your exhaust down; you've come to the right place. Our Vortex 2 insert can probably help. Reduces sound by approximately 6-8 decibels* Installs in minutes Very slight noticeable power loss Compatible with the Big Gun Exhaust Spark Arrestor* Compatible with most* Big Gun Exhaust Systems This insert is not recommended for high compression/larger motor vehicles that are over 600cc's. Notes: *Decibel ratings may vary per model.* *Either the Spark Arrestor or spacer ring is needed for proper installation of a Vortex or Vortex 2 Insert.* *Not compatible with EXO, EXO Stainless, EVO M Series and some older style mufflers that do not have a "straight through" core.* ** USE LOCTITE ON ALL SCREWS WHEN INSTALLING & PERIODICALLY CHECK TO ENSURE THEY ARE TIGHT **