The R4-S Brake Pad Compound: Unleashing Performance and Control

The R4-S Brake Pad Compound: Unleashing Performance and Control


At Refined Performance we are frequently asked which brake pad compound we use for street and track use. We recommend the R4-S Compound brake pad made by Porterfield. Brake pads are a crucial component of your vehicle's braking system, responsible for converting kinetic energy into heat through friction. While there are various brake pad compounds available in the market, the R4-S brake pad compound stands out as an exceptional choice for those seeking unrivaled performance and control. In this blog post, we will delve into the features and benefits of the R4-S brake pad compound, exploring why it is a top choice among automotive enthusiasts and high-performance drivers.

Unmatched Performance

The R4-S brake pad compound is designed to deliver outstanding performance under demanding conditions. Whether you are on the racetrack or tackling aggressive driving maneuvers on the open road, the R4-S compound is built to handle the heat and deliver consistent, stable braking power. Here's what sets it apart:

  • High Friction Coefficient: The R4-S brake pad compound offers a high friction coefficient, enabling it to provide an exceptional initial bite. This means you'll experience immediate and responsive braking as soon as you apply pressure to the pedal.
  • Superior Heat Resistance: The R4-S compound is engineered to withstand high temperatures, making it ideal for performance driving. It effectively dissipates heat, reducing the risk of brake fade and maintaining consistent performance even during intense braking situations.

Enhanced Control

When it comes to driving at high speeds or making precision maneuvers, control is paramount. The R4-S brake pad compound ensures that you stay in command and have the confidence to push your vehicle to its limits. Here's how it enhances control:

  • Stability and Modulation: The R4-S compound provides excellent brake pedal feel, allowing for precise modulation and control of braking force. This enables you to fine-tune your braking inputs, giving you the ability to manage your speed effectively through every corner and challenging situation.
  • Reduced Vibrations and Noise: The R4-S compound incorporates advanced noise-dampening technology, minimizing vibrations and reducing noise during braking. This not only enhances overall driving comfort but also provides a more refined and enjoyable driving experience.


While the R4-S brake pad compound offers exceptional performance and control, it's essential to consider certain factors when considering its application:

  • Aggressive Braking Sound: Due to its high friction coefficient, the R4-S compound may generate noticeable braking noise, especially during low-speed braking or when the rotors are cold. However, as the pads warm up and settle into their operating temperature range, the noise typically diminishes.
  • Rotor Wear: The high-performance nature of the R4-S compound means it can be more aggressive on rotors compared to standard brake pad compounds. As a result, it's essential to closely monitor the condition of your rotors and be prepared for more frequent rotor replacements when using the R4-S compound.


The R4-S brake pad compound is a game-changer for performance-oriented driving. Its ability to deliver unmatched performance and control in even the most demanding situations makes it a top choice for automotive enthusiasts and drivers looking to push the limits of their vehicles. With its high friction coefficient, superior heat resistance, and enhanced control, the R4-S compound ensures that your braking system performs optimally, giving you the confidence and control necessary for an exhilarating driving experience. However, it's essential to consider the unique characteristics of the R4-S compound, such as the potential for increased rotor wear and braking noise, when deciding if it aligns with your specific driving needs. Consult with a professional to determine if the R4-S brake pad compound is the right choice for you, and get ready to unleash the full potential of your vehicle's braking system.

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