Lowering Ohm's

You'd need to have either two of those subs, or a DVC sub, to even wire it up to show the amplifier a single 2-ohm load.  Even then though most likely your amp will be damaged, or at the very least go into protection mode, as most 2-channel amps cannot handle a 2 ohm mono load.  Usually it's 4 ohm mono/2 ohm stereo, but nothing lower than that.

But since your sub has a single 4-ohm voice coil then there's no way to hook that up to any amp for a 2ohm load.

4ohm bridged is the best that you can get out of most 2-channel amps.