i always liked my "lets rip the passenger window out of the track" mod.
then there's the "i want a green DIC but suck at soldering" one. damn gaping hole in the dash.

seriously though, i replaced the stock foglights with 35 watt bulbs and they melted the housings. and i gutted the airbox but all it did was make my intake whistle loud enough to make my car sound turbo'd.