Steve, I Need Your Help On Which Is The Best Setup?

[GMoney7300]

Ok I have 2 15" Fi BTL dual 1-ohm 15z and they are rated at 2000 watts rms each. I need help on deciding which setup is best, 1 RF T40001bd for both subs, 2 T25001bd (1 for each sub), or 2 T20001bd (also 1 for each sub). And for each setup, how to wire the subs up at 1-ohm being on each amp there are 2 speaker terminals. I have found diagrams that show how to wire the 2 subs together to achieve the 1-ohm setup but have yet to find a diagram that shows exactly how to wire each setup to the amp. If you can help me out Steve I would greatly appreciate it cause I have a 99 tahoe and I am trying to be slappin down the block like you. (Well somethin like you cause ya boy cant afford to put 4 18'z and 20k watts in my truck lol but you got mad respect from me mayn )