Model S Which Soundqubed subwoofer?

[The T-man]

Which model of this Soundqubed subwoofer is the right one for drop in stock replacement on Model S?
this + LH amp is my plan heard it's the simplest easiest bang for buck upgrade
2014 S w/ UHFS so figured start w/ Sub first
Anyone have the LH amp for sale pm me!

 

[treowx]

I might have an HDS 2.1 for sale this week. Going to try out the NVX sub and see if there is a performance difference. The one I have is dual 2ohm so you can drop to 1ohm to match factory impedance. HDS has better low range. Stock sub has a broader range. I got the sub with the Amp I bought a couple of weeks ago.