2011 Crew Cab underseat sub enclosure

[dsr611]

Probably a long shot, but I was wanting to see if anyone had an underseat (rear) sub enclosure, and if so, could you post the measurements (don't want to do a seat lift if I can get by with not doing so)?  Getting ready to install a new HU, amp and subs (still debating on 8s vs 10s).  I've found several places online that sell them, but would rather build it myself

[Anthony Ventura]

I have a 2018 silverado and I was wanting to know the same information. Measurements for a ported box for under the seat in my crew caw for two kicker cvx 12"s. Hopefully someoene will come through.

[GOMD]

On 2/26/2023 at 9:33 PM, Anthony Ventura said:

I have a 2018 silverado and I was wanting to know the same information. Measurements for a ported box for under the seat in my crew caw for two kicker cvx 12"s. Hopefully someoene will come through.

https://subthump.com/Chevrolet-GMC-Custom-Subwoofer-Boxes/Silverado-And-Sierra-Crew-Cab-Custom-Subwoofer-Enclosures-by-Subthump/20142018-Crew-Cab/2014-Up-GM-Crew-Cab-Dual-Downfire-Box-New-1.html?osCsid=bo4ppupdqe9isnaiq70fb7oo31