kmech_7 wrote: its useless. <---i think i spelled that wrong.....?>>>
Sorry to rain on your parade, but ^ that's definately not true.
In addition to keeping crap out of your engine bay, it serves to reduce underbody drag AND to properly circulate heat out of the engine bay.
I was initially going to get a piece of plastic or sheet metal to put down there thinking it would provide perfect drag (or lack there of) until I started doing some extensive research on the importance of proper ventilation and drag and lift.
Note: A lowered G will experience less underbody drag than a stock height G.