Q. I already have Wilwood P/N 120-10188 Calipers, can I just buy the rest of the items? A. No. We have modified the caliper to allow for the thickness of the 316mm rotor which means that the other components will not work with an out-of-the-box caliper of the same P/N. Q. Does this package suit any other models? A. We have created this package to suits the models listed. We cannot confirm if it will be suitable for other models. Q. How much will my brake performance increase? A. Generally speaking, multi-piston calipers improve your brake performance as more pistons equal more force. More of the brake pad will be pressed against the rotor at multiple points thus creating a more equal force across the brake pad surface. Many other factors can affect your particular vehicles brake performance, such as,  tyre choice, brake pad material, suspension etc. Q. How come you don’t include any rear rotors in this kit? A. We’re working on creating a matching rear rotor, in the meantime some compatible rotor options are OEM: 26700CA000 DBA: 42656S-10