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Two-piece rotor (Open Slot) - MERCEDES E550, E550 4-Matic 2012-14 Front
Two-piece rotor (Open Slot) - MERCEDES E550 4-Matic 2012+ Front
This product photo is for reference only.
MSRP (pair): $1,277.78
Sale Price (pair): $1,150.00
You save $127.78!

Price with Selected Options: $1,150.00
Note: Our PD1149 front brake pads are for E550 4-Matic w/fixed 4 pot calipers and not identical to the OEM pads but will fit the caliper. Brake pad sensors will not function with our pads and will need to be left plugged in and zipped off during installation.

Availability: Usually Ships in 2 to 3 Days
Product Code: 2576

RB-Brake Pad

XT910 - Street (PD1149-391) [Only for 4-Matic w/4 pot calipers, not for E550 w/floating calipers] [Add $124.39]

Kit includes:
  • 2 ea. RB center mount 2pc rotors
See options for brake pads to fit E550 4-matic w/4 pot calipers. No pads available for E550 with floating calipers.

Features & benefits:
  • Specifically made to fit E550 floating calipers without any interference or modification unlike competitor's.
  • Direct bolt-on, easy to install, no additional hardware needed.
  • Significant weight saving for better handling and acceleration.

Rotor weight comparison:

Size (mm) Wt (lbs)
OE 1pc 360x36 36
RB 2pc 360x36 24.4
Total weight savings = 23.2 lbs

RB rotors are made of harder iron than OE rotors. Our rotors are most compatible with semi-metallic brake pads. We do not recommend the use of ceramic brake pads, which may cause vibration.

Rotor Material: Racing Formula Alloyed Gray Iron & Heat treated

These two-piece rotors were engineered to be the best stock replacement two-piece rotor on the performance market. This rotor is direct bolt-on, easy to install, no additional hardware needed. They can deliver consistent brake torque under extreme heat, session after session. When it comes to replacement - operating cost over the time will be lower than one-piece rotor. Our unique and patented rotor designs make our discs cooler and last longer:

  1. Convergent vane design

    The cooling vanes are of a convergent nozzle design, which increases airflow and turbulence and makes discs cooler. (Illustration #1)

  2. Center-mount design

    The center-mount flanges for hat mounting to the rotor ring have several benefits. (Illustration #2)
    • It allows the ring to be used on either side of the vehicle simply by mounting the hat on either side of the ring (unidirectional).
    • The stress load transferred from the ring to the hat is balanced.
    • Air inlets are widely open to both inboard and outboard sides of the rotor. More air suctions and even temperature on both sides of the disc surface.
    • Heat transfer from the disc surfaces to the hat is even and minimized by increasing the flange length and the airflow around the flanges.
    • Mounting flanges are on both friction surfaces ultimately provides excellent heat balance.
  3. True floating design

    Exclusive full floating design with 10.9 grade alloyed hardware. Hardware is DACRO coated and crimp locking. DACRO is highly corrosion resistant and provides a film for easier movement between the hat and rotor ring as disc expands and contracts and the crimp design provides positive engagement without rattling or torque loss at temperature.

Related Links:

Feature Comparison Two-piece Rotor
Two-piece Disc Surface Finish

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