Just the normal stuff I put on all my cars.
Ceramic wheel bearings, light weight wheels and tires , rotors , battery and relocated to the back , light catback (aluminum piping) , light pulley and thats about it.
Rotors are 20lbs less front
wheels 24-6lbs less aprox
rear rotors 7lbs less
tires 8lbs less aprox
battery 20-25 lbs less and better weight distribution
pulley 5,5 lbs less
catback 5-7lbs less aprox
rotational mass less its about 63-65lbs aprox
and 25-30lbs less of weight ,plus you can always take the spare tire and tolls outs and that is about 30-5lbs less , another 60-5 pounds lighter
Very nice weight reduction on my book.
Regards