well i have 2 kicker l7 12s im trying to decide between the three, if i bought a reg cab chevy i would probally downgrade to 2 10s just cause of space, if i did a extended cab truck i would want to put a box under the rear seat with the 2 12s, i would try to modify the seat to make it seat alittle higher to fit a little bigger ported box in there, and if i did a tahoe i would build a good size box, im deffinatly going ported, i just wanted to know what would get louder and sound better between the three