What is the main benefit of drilled and slotted brake rotors?

Drilled holes help vent heat and gases away from the rotor surface, while the slots help sweep away dust and moisture. This combination can lead to improved cooling and more consistent braking performance, especially under heavy use.

Does this rotor come with any hardware?

This product includes one rear right brake rotor. Hardware such as lug nuts or brake pads are typically sold separately.

What is the black finish on the rotor?

The black finish is a coating applied to the rotor surface, primarily for corrosion resistance and aesthetics. It helps prevent rust during storage and shipping, and gives the rotor a clean look behind the wheel.

R1 84-91 BMW 325I (USA/Canada) Rear Right Drilled & Slotted Black Brake Rotor

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Specifications

Brand: R1 Concepts
Part #: ECB-31018R
UPC: 194873258016

R1 84-91 BMW 325I (USA/Canada) Rear Right Drilled & Slotted Black Brake Rotor

Name: R1 84-91 BMW 325I (USA/Canada) Rear Right Drilled & Slotted Black Brake Rotor
Brand: R1 Concepts
Price: 102.48 USD
Availability: InStock

$102.48

On Backorder

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

This R1 Concepts rear right brake rotor features drilled and slotted surfaces for improved cooling and stopping power on a range of BMW 3 Series models.

Key Features

Fits 1984-1991 BMW 3 Series models including 318i, 325, 325e, 325es, 325i, 325iX, and 325is.
Rear right side brake rotor.
Features drilled holes for heat and gas venting.
Slotted design helps clear dust and moisture from the rotor surface.
Black finish for a clean look.
Direct fit for the specified BMW 3 Series vehicles.

⚠️ 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

In this box, you get one R1 Concepts rear right brake rotor, designed for a variety of BMW 3 Series vehicles from the mid-80s to the early 90s. The rotor has a black finish and features both drilled holes and slotted grooves. These aren't just for looks; the drilled holes help dissipate heat and gases, while the slots help sweep away dust and moisture, giving you more consistent braking performance, especially when you need it most.

This rotor is built to fit many BMW 3 Series models, including popular ones like the 1987-1991 325i and the 1986-1988 325. The combination of drilled holes and slots helps keep the rotor surface clean and cool, which can lead to a more solid feel at the brake pedal and improved stopping distances compared to a plain rotor. The black finish also adds a bit of visual appeal behind your wheels.