Not just that, Knucklehed90, but that sub has a motor that is only sufficient for a 6" mid-range/mid-bass driver at best..... the actual 4-5mm of (semi) linear excursion this driver could provide, along with very low thermal capacity (1" voice coil on a sub?????).... this is not a sufficient driver to make a good subwoofer.
Parts Express has some decent performance driver alternatives available if budget is this much of a concern, and one can always go to ebay and wait for a mint Infinity Perfect 12.1 of 12VQ to show up for cheap - this is a first rate sound quality driver.
I hope the OP does not take this the wrong way. I am only trying to help; not insult or belittle the purchase or decision. I can see how this mistake can be made - and I hope I can save the OP further aggravation with my information.
-Chris