Specifically what compenents can be removed, replaced or moved to achieve as closely as possibly a 50/50 balance (without compromising comfort; i.e. not removing the air conditiong, I don't mind extra noise)? The car I have in mind is the 2002-2003 WRX so if a compenent isn't avalaible let me know..
lightwieght front bumper beam
relocate battery to trunk
carbon fiber front fenders (Are these paintable?)
remove fog lights
carbon fiber front door skins
replace roof skin with alumanim or carbon fiber