I was worried about the 500/1 pushing the sub at first as well. I bought the setup used, but figured it was worth a shot.
I spoke with EW on it and he said it would make some noise! The car has leather and from what i've seen it makes it a bit harder for the sound to come through the trunk.
The amp is turned all the way down and at a decent volume level it'll make your hair move. Also during some parts of certain songs it makes it hard to inhale...
It has clean bass all around and when it hits looow it sounds great!
I still have 2 stock 6 or 8" subs on the rear deck. I'm thinking about removing them as the JL will make plenty. While doing that will open the space between the trunk and cab, i'm hoping for more sound to my ears.