PowerStop Autospecialty Brake Rotor

2010–2015 BMW 550i GT Rear 4.4L V8

Part #: EBR1221

Overview

The PowerStop EBR1221 is a high-quality rear brake rotor designed specifically for the BMW 550i GT models produced between 2010 and 2015. Engineered to deliver superior stopping power and durability, this rotor is an ideal upgrade for enthusiasts seeking reliable performance and enhanced safety. Whether you're replacing worn-out factory rotors or upgrading for improved braking response, this direct replacement rotor ensures your vehicle maintains optimal braking performance under various driving conditions.

Built with precision and attention to detail, the PowerStop Autospecialty brake rotor provides a perfect fit and consistent performance. Its robust construction helps support your vehicle’s braking system during spirited driving, daily commuting, or heavy loads. With this rotor, you’ll experience improved stopping distances, better pad bite, and increased resistance to heat and stress, contributing to safer and more confident driving.

Key Features

The PowerStop Autospecialty brake rotor incorporates several advanced features designed to enhance your vehicle’s braking system:

• Direct Replacement Fit: Engineered for an exact OE fit, ensuring straightforward installation without modifications.
• Precision Machined: Tru-Cast manufacturing process guarantees precise dimensions for optimal rotor balance and performance.
• Oversized Drill Holes: Designed to improve heat dissipation and reduce brake temperature during heavy use, helping prevent brake fade.
• Corrosion Resistance: Finished with a durable gold zinc plating that resists rust and corrosion, extending the rotor’s lifespan.
• Stress Riser Resistance: Counter-sunk holes and stress-relief features help prevent cracking and stress fractures under demanding conditions.
• Wet Weather Performance: Enhanced design ensures consistent braking in wet conditions, reducing stopping distances and improving safety.
• Stress-Riser Reduction: Counter-sunk holes and stress-relief features help prevent cracking and stress fractures under demanding conditions.
• Durability & Reliability: Made from high-quality cast iron to withstand high temperatures and heavy braking loads.

Construction & Design

The PowerStop Autospecialty brake rotor features a robust cast iron construction that provides excellent thermal stability and durability. Its Tru-Cast precision machining process ensures the rotor maintains exact dimensions for a smooth, balanced operation. The oversized drill holes not only aid in heat dissipation but also help reduce brake fade during aggressive driving or towing. The gold zinc plating offers superior corrosion resistance, maintaining the rotor’s appearance and performance over time, even in harsh weather conditions.

The design incorporates stress-sunk holes and counter-sunk features to minimize the risk of stress risers, which are common causes of cracking in high-stress environments. This thoughtful engineering ensures the rotor remains reliable and safe for long-term use, providing consistent braking performance mile after mile.

Performance & Sound

The PowerStop Autospecialty brake rotor is engineered to improve overall braking performance compared to the original equipment. Its enhanced heat dissipation capabilities help maintain consistent stopping power during repeated or heavy braking. The precise machining and oversized drill holes contribute to a reduction in brake fade and improved pedal feel. While this rotor does not significantly alter the sound of your braking system, many users notice a more responsive and confident braking experience, especially in demanding driving conditions.

Installation & Fitment

This rotor is a direct bolt-on replacement for the factory rear rotors on your BMW 550i GT (2010–2015). No cutting, drilling, or complex modifications are required for installation. It is designed to fit seamlessly with your existing brake pads and calipers, making the upgrade straightforward for both DIY enthusiasts and professional technicians. Proper torque specifications and installation procedures should be followed to ensure optimal performance and safety.

• Easy, bolt-on installation with factory mounting points
• No special tools or modifications needed
• Compatible with OEM brake pads and hardware

What's Included

• One PowerStop Autospecialty Rear Brake Rotor (EBR1221)
• Installation hardware (if applicable)
• Instruction sheet (if included)

Ideal For

• BMW 550i GT owners seeking reliable, high-performance rear brake rotors
• Enthusiasts looking to improve braking response and reduce stopping distances
• Drivers in need of corrosion-resistant rotors for long-term durability
• Anyone replacing worn or warped factory rotors for safer driving

Emissions Note

This product is a direct replacement part designed to meet or exceed OEM specifications. It is intended for use on vehicles that are properly registered and compliant with local emissions regulations. Please verify compatibility before purchase.