Sundown NSv4 Drop-in Recone Size:15" The level 3 sub is

The level 3 sub is the ultimate daily driver sub

Please double-check that you are selecting the correct model

These will fit most FI 12" 4" coiled subs (No Omega or Delta)

We can create custom recones tailored to your specific sub/motor combination

Sundown NSv4 Drop-in Recone Size:15" The level 3 sub isThis drop in recone is for the Sundown NSv4 subwoofer. Drop In Recones Terms & Instructions Please note that our drop in recones do not include shims or glue. If you are uncertain about the reconing process, we recommend reaching out to us for guidance or sending in your subwoofer for professional service. Installation Guidelines for Your New Drop In Recone: For shimming, we recommend using regular printer paper, trimmed and stacked. Be sure the paper