PowerStop PSA-1903 Disc Brake Pad Set - Front

Front Track Day Brake Pads for MX-5 Miata

PowerStop PSA-1903 is a front disc brake pad set built for track day use on select Mazda MX-5 Miata and Fiat 124 Spider applications. It is aimed at drivers running R-compound tires or competing in spec racing formats who need consistent pedal response and fade resistance under repeated high-load braking.

Power Stop’s Track Day Spec line focuses on platform-specific pad compounds, and PSA-1903 is matched for the listed front caliper applications on the Mazda MX-5 Miata and Fiat 124 Spider. The result is a performance brake pad option with a metallic friction material, chamfered edges, slotted pad design, and included wear sensor, shims, brake lubricant, and mounting hardware.

Key Features

• Front disc brake pad set for track day and spec racing use
• Metallic friction material with 13.9 mm inner and outer pad thickness
• Slotted design with chamfered edges for performance braking applications
• Pad shims, brake lubricant, wear sensor, and mounting hardware included
• Mechanical pad wear sensor included
• Performance grade construction for repeated high-temperature braking

Product Details

PowerStop PSA-1903 is part of the Power Stop - Front Advanced Track Day High-Performance Brake Pads line, developed for drivers who want a pad compound matched to specific vehicle platforms rather than a generic street-performance formula. For the Mazda MX-5 Miata and Fiat 124 Spider front axle, this pad set is built to handle the demands of track sessions where brake consistency matters more than low-dust street comfort.

Compatible With 2025 Mazda MX-5 Miata, front; 2019-2021 Mazda MX-5 Miata, front; 2022-2024 Mazda MX-5 Miata, front; 2019-2020 Fiat 124 Spider, front; 2017-2018 Fiat 124 Spider, front; and 2016-2018 Mazda MX-5 Miata, front. This part number, PSA-1903, is a direct fitment-focused option for these front brake applications.

Common Problems This Pad Set Addresses

• Brake fade during repeated track laps
• Inconsistent pedal feel under high braking temperatures
• Premature pad wear in performance driving conditions
• Need for a front pad compound matched to a specific chassis
• Noise and fitment issues from worn or mismatched brake hardware

Installation Notes and Tips

Verify front caliper configuration before ordering, especially on 2016-2018 Mazda MX-5 Miata and 2017-2020 Fiat 124 Spider applications with OE ceramic or 1-piston front calipers. Clean the caliper bracket and rotor surfaces before installation, apply the supplied brake lubricant where appropriate, and follow the vehicle manufacturer’s bedding procedure for performance pads. PSA-1903 includes a mechanical wear sensor and pad shims for the listed applications.

Quality Assurance

Power Stop develops Track Day Spec brake pads around individual vehicle platforms to support consistent friction characteristics and fade resistance in demanding motorsport use. PSA-1903 is a performance brake pad set from the Power Stop Track Day line, engineered for the listed Mazda MX-5 Miata and Fiat 124 Spider front applications.