How did you get 400 off? Lighter wheel/tires. Lighter exhaust. Lighter battery. Lighter front and rear crash bars. Lighter seat and other seats removed. Lighter brake rotors. Then what?
I got a set of demon calipers so I got the RB front rotors . That allowed me to run a 17inch from wheel . I pulled 105lbs just in front wheels, tires and brakes .
The rear seat delete is worth 48 lbs
Remove all the trunk stuff is 30 lbs
Light weight battery 25-30 lbs ( depends on model )
Rear rotors 10lbs
Rear wheels 10 lbs
Race seats 100 lbs
Pulleys 5 lbs
Trans crossmember 4 lbs
Light weight sway. Bars 20 lbs
This is off the top of my head
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