I will try to put everything in this response but i know ill forget some.
First of all its a gt-s, so its already got manual seats, windows, no cruise control, no spoiler, no rear defrost, lame sound system, cloth seats, etc.
I removed all the car in the car
removed jack/spare, etc
removed all interior panels
removed rear seats
removed all stereo equip
removed rear and passenger seat belts
removed passenger seat
removed center console
removed side skirts
big's n littles
tubular front suspension
removed a/c components
o/r x-pipe saved like 25 lbs
removed smog crap
removed front and rear sway bars
exhaust dumps right b4 the axel
removed srut tower brace
removed glove box
removed dogbone
alum driveshaft
coilovers in the front
The list goes on and on. I want to keep my door panels. The only real savings left is alum heads. But ill gain the weight back with the massive turbo system thats going in.