The bottom one is a higher load tire which is heavier which isnāt needed the top one is correct. I try to stick to Costco website because they only install the correct load tires.
I have 2 12s in my truck with the stock speakers and it helped a lot but the stock speakers could be a little bit louder. The kicker 200.4 would help make them cleaner and a tad louder
Why even bother doing that when you can have a high end rear view mirror with the garage door opener that offers more features it plug and play and looks oem for less money...