XYZ Racing Hollow Rear Brake Kit — Mercedes Benz S CLASS W221 S 65 AMG (2005-2013)

The W221 S 65 AMG carries a twin-turbo V12 and a full limousine body at well over two tonnes, and every stop asks the rear axle to help settle that mass without the back end going vague. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz S Class W221 S 65 AMG is built to give that rear axle more thermal headroom and a firmer, more repeatable pedal than the standard hardware holds onto once the car is being driven hard.

This is a rear-specific kit, so it is as much about brake balance as outright stopping power. The point is to keep the back brakes pulling their weight alongside the fronts when you scrub a heavy S 65 down from sustained high-speed cruising, rather than letting the rears fade early and throwing all the work onto the front axle.

What this rear big brake kit does for your 2005-2013 Mercedes Benz S Class W221 S 65 AMG

After fitting, the change you feel first is consistency: the pedal stays firm through repeated heavy stops instead of going long and soft as heat builds. The hollow-vane two-piece floating disc sheds weight and exposes more vane area to airflow, so the rear discs recover temperature faster between braking events, which matters on a car this heavy. Choosing the right pad compound lets you tune the rear bite to how you actually drive: Street for quiet daily refinement, Sport for spirited road use with more bite and heat range, and Racing for harder driving where outright fade resistance matters most. The larger rear hardware sitting behind the wheels also gives the car a more purposeful look without touching the air suspension or ride height.

About the Hollow rear brake kit

The Hollow rear brake kit pairs a two-piece floating, hollow-vane disc with a fixed caliper to cut unsprung mass and improve heat management at the rear axle. The venting and the hollow vanes work together to move heat out of the rotor quickly, which is what keeps performance stable when the brakes are used hard and often. The caliper body is hollow as standard, with an optional Hollow Racing upgrade for serious track use, rated to 1000C with no dust cover and a two-year warranty. Three pad compounds are offered, Street, Sport and Racing, so you can set the kit up for everyday refinement, spirited road use, or harder driving. Discs are drilled or slotted at the same price, with two-tone anodized or titanium centre bells selectable. Caliper finish is a build choice too, available at no extra cost in Red, Yellow, Gold, Black or Anodized Black, with premium polished-forged Titanium, Polished Gold and Polished Silver, candy Teal, Blue, Red and Orange, or a Custom Pantone for 150 pounds. It is a bolt-on upgrade aimed at owners who want stronger, more repeatable rear braking on a heavy V12 saloon.

Fitment for the Mercedes Benz S Class W221 S 65 AMG (2005-2013)

This kit is matched to the W221-chassis S 65 AMG built from 2005 to 2013, and is the rear-axle component of the brake setup. It is specific to the S 65 AMG variant rather than the wider S Class range, so confirm your chassis code and model year against the listing before you order.

What buyers also search for

• Mercedes Benz S Class W221 rear big brake kit for the S 65 AMG V12
• W221 S 65 AMG rear brake upgrade that resists fade on long high-speed runs
• Hollow-vane rear disc kit for heavy V12 saloons with selectable pad compounds
• Mercedes S 65 AMG rear caliper colour options including Red, Black and Custom Pantone

Pick your pad compound and caliper finish for your S 65 AMG from the options above when you order.