The specs on the Pyle sub (available at Parts Express) don't seem to add up. High Fs, high Vas, but low sensitivity? Also in one place it's mentioned that it has a 1.5" voice coil, and in another a 2" voice coil. Also 175W RMS, 1200W peak.
The amplifier seems to be out of stock. I wouldn't buy a 1200W amplifier for my car unless it was class D design anyway - current draw would be way too high - if it was truly capable of producing 1200W.
Elemental Designs has their 13Kv.2 D4 on sale now for $50. If you have an amp that does 350x2 into 2 ohms, or can do 700W into a 1 ohm load, this might be a good buy.