Center console sub box replacement

I have a 2017 Silverado 1500 Double cab

Anyone know and custom sub boxes for the inside other than the JL audio stealthbox? There was a guy making them on GM Trucks forums but I cannot find any dimensions. If worst comes to worst I'll just add some sound deadening material to the factory Bose sub box but that's a last resort kinda thought process!

Anyways thank you for your time reading and for any help I can get....