I recently find this products in car magazine (option fans, japan) wilwood forge calipers = 2.5 lb to 4 lb in weight in comparison, TOYOTA ALTEZZA / LEXUS IS200, a stock calipers weights= 15 lbs each!! wilwood brake disc(carbon-iron material) **size 330mm = 12 lb in comparison, TOYOTA ALTEZZA / LEXUS IS200 , stock brake disc 290mm = 20 lb conclusion stock brake set= 35 lb X 4 = 140 lb wildwood brake set = 16 lb X 4 = 64 lb SAVES 76 lbs!!! and then we can use Forge Alloy Wheel (super light weight) **note: Japan technology, use 8000tons compression rate Japan currently has 70% of the market share in Forge Alloy Wheel **: F1 uses Forge Alloy Wheel (Enkei Japan) **: European factory has only developed technology at 5000-7000tons compression rate in comparison, a stock aluminium alloy wheel = 18,19,20inches size .if changed to Forge Alloy Wheel, it can save 8.8lb each total: save 35 lb brake set + Forge Alloy Wheel= total save 111 lb per car.
