FactionFab Titanium Front Brake Shim Set 2018-2021 STI | 1.0mm Thickness | Thermal Brake Insulation

Overview

The FactionFab Titanium Front Brake Shim Set is designed specifically for the 2018-2021 Subaru WRX STI to enhance braking performance under demanding conditions such as track days and autocross events. These shims act as a thermal barrier between the brake pads and caliper pistons, reducing heat transfer that can cause brake fluid to boil and lead to dangerous brake fade. This product is ideal for Subaru enthusiasts who push their vehicles hard and require consistent, reliable stopping power.

Crafted from 6AL-4V Grade 5 titanium, these shims offer superior heat insulation compared to traditional steel shims. The 1.0mm thickness provides better thermal protection than thinner competitors, helping to dissipate heat more efficiently and protect critical brake components. FactionFab’s engineering approach focuses on combining lightweight materials with functional design to deliver a simple yet effective upgrade that integrates seamlessly with Subaru’s OEM braking system.

By reducing heat soak into the calipers, these titanium shims help maintain brake fluid integrity and prevent fade during extended high-performance driving. This not only improves safety but also extends brake pad life, making them a practical upgrade for Subaru WRX STI owners who want to maximize their vehicle’s braking consistency on the track without compromising daily drivability.

Features & Specifications

This FactionFab Titanium Front Brake Shim Set is engineered for the 2018-2021 Subaru WRX STI and features 1.0mm thick Grade 5 titanium construction. Made from 6AL-4V titanium, it delivers superior thermal insulation to reduce heat transfer and prevent brake fade, ideal for enthusiasts seeking enhanced track braking performance.

• Brand: Faction Fab
• Product: Titanium Front Brake Shim Set 2018-2021 STI
• Part Number: 1.10316.1
• Fitment: 2018-2021 Subaru WRX STI
• Material: 6AL-4V / Grade 5 Titanium
• Finish: Natural titanium color
• Construction: Precision cut, 1.0mm thickness
• Origin: Not specified
• Thickness: 1.0mm (superior insulation compared to 0.5mm competitors)
• Quantity: 4 shims per kit

Key Benefits

• Thermal Protection: Significantly reduces heat transfer from brake pads to caliper pistons, preventing brake fluid boiling and fade.
• Performance Consistency: Maintains reliable braking performance during extended track sessions and aggressive driving.
• Durability: Titanium construction resists corrosion and withstands high temperatures better than steel alternatives.
• Extended Pad Life: Reduces heat-related pad degradation, saving money on frequent replacements.
• Fitment Precision: Designed specifically for FMSI D1365 brake pads used on 2018-2021 STI models for perfect OEM compatibility.
• Track Compliance: Qualifies for most SCCA and NASA classes, making it a practical upgrade for competitive Subaru owners.

What's Included

• 4× FactionFab Titanium Front Brake Shims (1.0mm thickness)

Installation & Compatibility

Installation of the FactionFab Titanium Brake Shim Set is straightforward for anyone familiar with brake pad replacement and requires no special tools beyond standard brake service equipment. These shims fit between the brake pad backing plate and caliper piston, acting as a thermal barrier without altering pad fitment or caliper function. Professional installation is recommended if you are not experienced with brake maintenance to ensure proper fit and safety. This product is compatible with Subaru WRX STI models from 2018 to 2021 using FMSI D1365 pads. Verify your brake pad type before purchase to ensure compatibility.

• Professional Installation: Recommended for safety and proper fitment
• Modifications Required: None
• Verify Compatibility: Confirm FMSI D1365 pad fitment on your STI model

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