Description
Improve rear brake thermal management with the FactionFab Titanium Rear Brake Shim Set, designed for applications using FMSI D2118 rear brake pads. These precision-made titanium shims create a thermal barrier between the brake pad and caliper piston, helping reduce heat transfer into the caliper and brake fluid during repeated hard braking.
Aggressive street driving, autocross, and track use can generate substantial heat within the braking system. As brake temperatures increase, heat can transfer through the brake pad into the caliper piston and eventually the brake fluid. Excessive heat can contribute to brake fade and inconsistent braking performance.
FactionFab Titanium Brake Shims help address this issue by using titanium's naturally low thermal conductivity compared with steel. Installed between the brake pad and caliper piston, the 1.0mm-thick shim helps slow heat transfer and provides additional thermal protection for the braking system.
Manufactured from 6AL-4V / Grade 5 Titanium, these shims combine excellent durability with low thermal conductivity. Their 1.0mm thickness provides enhanced insulation compared with thinner 0.5mm shim designs, making them particularly useful for high-temperature performance applications.
Key Features
- Designed for FMSI D2118 rear brake pads
- 4 titanium shims included
- Made from 6AL-4V / Grade 5 Titanium
- Low thermal conductivity compared with steel
- 1.0mm thickness for enhanced thermal insulation
- Creates a thermal barrier between the brake pad and caliper piston
- Helps reduce heat transfer into the caliper and brake fluid
- Helps maintain more consistent braking performance during repeated hard braking
- Helps reduce the potential for heat-related brake fade
- Can help extend brake pad life during demanding use
- Ideal for autocross, track days, spirited driving, and performance applications
Brake Heat Management
Repeated hard braking creates significant friction and heat between the brake pad and rotor. Some of that heat can travel through the pad and into the caliper piston. As caliper temperatures rise, additional heat can be transferred to the brake fluid, potentially increasing the risk of fluid boiling and brake fade.
The FactionFab Titanium Rear Brake Shim acts as a thermal barrier between the brake pad and caliper piston, slowing heat transfer into the caliper and helping protect the brake fluid from excessive temperatures.
This additional thermal protection can help maintain more consistent brake performance during repeated high-temperature braking and makes these shims an excellent upgrade for performance-oriented street, autocross, and track vehicles.
Specifications
- Material: 6AL-4V / Grade 5 Titanium
- Thickness: 1.0mm
- Quantity: 4 shims
- Application: Rear brakes
- Brake Pad Type: FMSI D2118
Fitment
FactionFab Titanium Rear Brake Shims are designed for vehicles using FMSI D2118 brake pads, including:
- 2018-2021 Subaru STI
- 2024+ Subaru WRX TS
- 2024+ Subaru WRX TR
Performance Brake Upgrade
The FactionFab Titanium Rear Brake Shim Set is a simple way to improve rear brake thermal management without replacing the factory caliper assembly. By reducing heat transfer from the brake pad into the caliper piston, these shims can help maintain more consistent braking performance during repeated hard stops.
For 2018-2021 Subaru STI and 2024+ Subaru WRX TS and TR applications, these titanium shims are an excellent addition to a performance brake setup for drivers who demand improved heat management during aggressive street driving, autocross, and track sessions.
Important: Verify your vehicle's exact brake configuration and FMSI D2118 pad compatibility before ordering. Competition regulations may vary by class and can change over time; check current SCCA and NASA rules before competition use.
