check out www.buffalo-rangers.com/meets/
for mod ideas. or, you can check out, www.ihumpedurcat.com/ranger
to see what i did to my truck. and i didnt void the warranty.
So far the only things I have done that actually modify the truck - non bolt ons, with the blinker mod - where the inner and outter lights alternate when the turn signal is on - WAY COOL btw. and the ac mod, which consists of placing a switch so YOU the driver can decide when to turn on the ac, and not the truck so with the ac mod, set it on max ac, and as long as ur switch is off, the ac wont come on - pretty spiffy.