PowerStop Aero 4/6 Radial Mount Track Day SPEC Brake Pads

2011–2025 Subaru Impreza / WRX / STI 2.0L Turbo / 2.5L Turbo

Part #: PSA-R42A

Overview

The PowerStop PSA-R42A Aero 4/6 Radial Mount Track Day SPEC Brake Pads are engineered for serious track day enthusiasts and competitive racers seeking maximum braking performance. Designed to deliver exceptional stopping power under demanding conditions, these high-performance brake pads are ideal for drivers who push their vehicles to the limit on the race track or during spirited driving sessions. Whether you're competing in a spec racing series like Spec Miata or running R-Compound tires on your track day car, these pads provide the confidence and control you need to perform at your best.

Built with advanced materials and precision engineering, the PowerStop Track Day Spec brake pads help support increased heat dissipation, reduced brake fade, and consistent braking performance lap after lap. They are a perfect upgrade for those looking to elevate their vehicle's braking capabilities beyond stock components, ensuring you can brake later and harder without sacrificing reliability or pedal feel.

Key Features

The PowerStop Aero 4/6 Radial Mount Track Day SPEC Brake Pads incorporate several innovative features designed to optimize performance and durability:

• High-Performance Friction Material: Crafted from a specialized compound that offers superior bite and fade resistance during high-temperature operation, ensuring consistent braking even under extreme conditions.
• Radial Mount Compatibility: Engineered for radial mount calipers, providing a secure fit and optimal pad alignment for maximum contact and braking efficiency.
• Track-Ready Design: Specifically formulated for track use, these pads excel in high-heat environments, making them suitable for aggressive driving, racing, and track days.
• Reduced Dust and Noise: Designed to minimize brake dust and noise, helping keep your wheels cleaner and your driving experience more comfortable.
• Durability and Longevity: Despite their aggressive performance, these pads are built to withstand the rigors of repeated high-performance braking, offering reliable service over multiple track sessions.
• Compatibility with Race Tires: Optimized for use with R-Compound tires, providing the necessary braking power to match high-traction setups.
• Advanced Heat Management: Features engineered to improve heat dissipation, reducing the risk of brake fade and maintaining consistent pedal feel throughout your session.

Construction & Design

The PowerStop Aero 4/6 Radial Mount Track Day SPEC Brake Pads are constructed using a high-friction, high-temperature compound that is carefully formulated to withstand the intense heat generated during track use. The pads feature a robust backing plate and precision-cut friction material to ensure even wear and reliable performance. Their design incorporates advanced heat management techniques, including optimized slotting and chamfering, to promote effective heat dissipation and minimize brake fade.

The radial mount compatibility ensures a secure and precise fit within your caliper assembly, promoting consistent contact and maximizing braking efficiency. These pads are TIG-welded and manufactured with strict quality control standards to ensure durability, reliability, and safety during high-performance driving.

Performance & Sound

Designed for track day and racing applications, these brake pads provide exceptional stopping power and fade resistance. Drivers will notice improved pedal feel, quicker response, and increased confidence when braking hard into corners or during emergency stops. While they are optimized for high-heat environments, they also offer a relatively quiet operation compared to other high-performance pads, making them suitable for both track and spirited street driving.

Installation & Fitment

The PowerStop PSA-R42A Aero 4/6 Radial Mount Track Day SPEC Brake Pads are a direct bolt-on upgrade for compatible radial mount calipers. Installation is straightforward for experienced enthusiasts or professional mechanics, with no modifications required. Ensure your calipers are radial mount type and verify fitment before installation. Proper bedding-in of the pads is recommended to maximize performance and lifespan.

• Easy, bolt-on installation with standard hand tools
• No cutting, drilling, or special tuning required
• Designed to fit radial mount calipers on compatible vehicles

What's Included

• Set of high-performance track day brake pads (front or rear as specified)
• Installation hardware and instructions

Ideal For

• Track day enthusiasts seeking maximum braking performance
• Competitive racers in spec racing series
• Drivers running R-Compound tires who demand superior stopping power
• Performance-oriented street drivers who push their vehicle's limits

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.