GSteg

iTrader: (15)

No one has concrete numbers because the weight varies from one brand to another. The Supra rotors are only lighter if they're the aftermarket version with aluminum center hub. I dont recall seeing one for the LS.

But OEM LS vs OEM TT, the weight difference is negligible on a car like the SC.

drewdizzle

iTrader: (4)

i found this online

"
LS400:
caliper weight - 9 lbs
rotor diameter - 12.4 inches
rotor thickness - 1.26 inches

Supra:
caliper weight - 15 lbs
rotor diameter - 12.72 inches
rotor thickness - 1.26 inches

Personally...I'm not sure whether to trust the accuracy of the weights given. From the pictures...they both look like they are sized very similar (both are 4 piston calipers). The rotor diameters are close, and the thickness is the same. So I find it a little difficult to believe that there is a 6lb difference in weight. Not saying that this can't happen...but I'm not sure if I trust the info.
"

drewdizzle

iTrader: (4)

"OEM Lexus SC400 Brake Specifications caliper 2 piston 17.5 lbs. rotor 11.65 inch 20 lbs. rotor thickness 1.26 inch

OEM 95-00 LS400 Brake Upgrade ($300 to $500) caliper4 piston 9 lbs.rotor 12.4 inch, dk lbs. rotor thickness 1.26 inch

OEM 93-98 Supra Turbo Brake Upgrade ($500 to $1000) caliper 4 piston 15 lbs. rotor 12.72 inch 20 lbs. rotor thickness 1.26 inch"

FOUND THIS ON CL