What is the benefit of drilled and slotted rotors?

Drilled holes help vent heat and gases away from the braking surface, which can improve stopping power and reduce brake fade. The slots also help to sweep away dust and moisture, keeping the brake pads in better contact with the rotor for more consistent braking.

Does this rotor come with hardware?

This product listing is for the brake rotor only. Installation hardware, such as lug nuts or brake pad hardware, is typically sold separately.

Should I replace my brake pads when installing new rotors?

It is highly recommended to replace your brake pads when installing new rotors. New pads paired with new rotors will ensure optimal braking performance and longevity for both components.

R1 06-20 BMW 328I Rear Left Drilled & Slotted Black Brake Rotor

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Specifications

Brand: R1 Concepts
Part #: ECB-31117L
UPC: 194873259549

R1 06-20 BMW 328I Rear Left Drilled & Slotted Black Brake Rotor

Name: R1 06-20 BMW 328I Rear Left Drilled & Slotted Black Brake Rotor
Brand: R1 Concepts
Price: 101.89 USD
Availability: InStock

$101.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

R1 Concepts rear left drilled and slotted black brake rotor for a wide range of BMW models. Improves braking performance and heat dissipation.

Key Features

Fits a wide range of BMW 3 Series, 4 Series, and X1 models from 2006-2020.
Drilled holes help dissipate heat and gases for improved stopping power.
Slotted design sweeps away dust and moisture for consistent braking.
Black finish provides a clean appearance.
Designed as a direct replacement for the original rear left brake rotor.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This is a rear left R1 Concepts drilled and slotted brake rotor, part number ECB-31117L. It's designed to fit a variety of BMW models from the mid-2000s through the late 2010s, including popular choices like the 328i, 428i, and 330i. If your BMW is experiencing reduced braking effectiveness, especially after repeated stops, a new rotor like this can make a significant difference.

The drilled holes in this rotor help to vent gases and heat away from the braking surface, which can improve stopping power and reduce the chance of brake fade. The slots also help to sweep away dust and moisture, keeping the brake pads in better contact with the rotor. This rotor has a black finish, which adds a clean look behind your wheels. It's a well-built replacement that aims to restore your braking performance.

When replacing rotors, it's always a good idea to inspect your brake pads and consider replacing them at the same time if they are worn. This ensures you get the most out of your new braking components.