Our ISX rear brake caliper upgrade kit for the IS utilizes the awesome Wilwood Forged Superlite 4 piston Caliper. This caliper upgrade allows for a huge variety of low-cost rear brake pad options for the ISF. Standard 2 piston rear Brembos are highly limited in costly brake pad options. Additionally, our kit increases rear brake bias which we have found to be effective at the track, especially when coupled with a rear wing/spoiler for down force.

This kit includes the calipers, optional stainless steel brake lines, Wilwood pads, and adapter brackets.

Please note that this kit does not include rear rotors. You need to have ISF rear rotors to install this kit on the models below. If you don't have ISF rear rotors, then you can buy the rear kit that includes rotors from our store or purchase rear rotors separately.

All components in this product kit are proudly engineered and manufactured here in the United States of America.

Please click on one of the links below for more relevant detailed information about our approach to engineering great braking systems for your Lexus:
Brake System Design by RR Racing
Brake Pad Selection Guide
RR Racing Lexus IS-F Project.

Please note that this kit requires upgraded rear ISF rotors -- it is not compatible with stock rotors for the models listed in this table.