The infinity will sound better when pushed to full potential but powering them both off the factory amp those kickers will sound just as good. If your adding another amp later I would run the infinity. If not than go for the cheaper of the two. Either option will be a huge improvement.
If your an audiophile like me you'll end up ripping out all the stock junk. Yes I said junk. (Mine came with the shaker and it's garbage quality)
And replace it all with aftermarket subs speakers and amps. Only thing I have not done is the radio.
I had a few bumps in the road with noise issues but now it's all figured out and sounds incredibly clear and gets very loud
2013 pp mca 3.7 glass roof
2.5% dl tinted windows
More coming visually for now.