I had the same choice. I ended up using Kicker because of a great price I got them for locally. The install of them isn't as easy as swapping factory speakers. Most of the aftermarket subs won't fit in the angle mount that they designed. The only option I found was to cut out the stock whole and build mounting plates out of ABS and then carpet them to match. Basically turning the stock holes into a speaker box. Word of warning though, you have to keep your seats off of them because they will jump pretty far out and smack the hard plastic on the back of your seat. Over all they sound good but you will still need something more for lower end bass. The 6.5 subs are good for driving harder mid range over say, a component speaker. I used a Basslink II in the rear and it works very well for an all around system at a good mid range price. Hope this helps.