XYZ Racing Hollow Rear Brake Kit — Mercedes Benz S CLASS W221 S 600 (2005-2013)

The W221 S 600 hides serious pace beneath its limousine bodywork, and most of the job of hauling more than two tonnes back down from speed falls on brakes that were tuned for refinement first. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz S CLASS W221 S 600 goes straight at the rear axle, swapping the factory setup for a lighter, more thermally capable package.

This is a rear-specific kit meant to balance the larger front brakes most W221 owners run, keeping the car settled under hard retardation instead of pitching forward onto its air springs. Pad compound runs from Street through Sport to Racing, so the same hardware suits a relaxed V12 cruiser or a heavier-footed driver leaning on the brakes on faster roads.

What this big brake kit does for your 2005-2013 Mercedes Benz S CLASS W221 S 600

On a car this heavy the rear brakes work harder than the spec sheet suggests, and you feel the difference as confidence. The hollow-vane disc design trims rotational and unsprung mass at each rear corner, helping the rear suspension follow the surface and steadying the car as you slow from a cruise. More thermal headroom keeps the pedal consistent on a long descent or a run of high-speed stops, exactly where the standard rear discs start to heat-soak. Matched to a front upgrade, the kit holds sensible brake balance so the W221 stops flat rather than squatting. Pick the Racing compound and the bite arrives earlier and stays put at higher temperatures, while the Sport and Street pads keep things quiet and low-dust for daily V12 mileage.

About the Hollow Rear Brake Kit

The XYZ Racing Hollow Rear Brake Kit is a bolt-on rear-axle upgrade built around a lightweight two-piece floating, hollow-vane disc and a fixed multi-piston caliper sized for the mass of the W221. The hollow-vane disc construction lowers rotating weight while keeping enough thermal mass to resist fade, and the fixed caliper spreads clamping load evenly across the pad for a firmer, more linear pedal than the sliding factory item. 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 cover the range of use: Street for refined daily driving, Sport for harder road work, and Racing for track and sustained high-speed running. Discs are drilled or slotted at the same price, with two-tone anodized or titanium centre bells selectable, and calipers come finished in a choice of no-cost Red, Yellow, Gold, Black or Anodized Black, premium polished-forged Titanium, Polished Gold or Polished Silver, candy Teal, Blue, Red or Orange, or a Custom Pantone for 150 pounds, so the kit can sit discreetly behind the wheels or stand out against them. Every part is sized for the rear of this car, not a universal disc forced to fit.

Fitment for the Mercedes Benz S CLASS W221 S 600 (2005-2013)

This kit is mapped to the Mercedes Benz S CLASS W221 S 600 across the full 2005 to 2013 production run, covering the twin-turbo V12 flagship in rear-fitment form. It mounts to the standard rear hubs and carries the pad compound and caliper colour options as listed. Confirm your exact chassis and build year against the buying options before ordering.

What buyers also search for

• Mercedes Benz S CLASS W221 S 600 rear brake upgrade for a heavier, faster flagship saloon
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• W221 S 600 caliper colour choices including red, yellow, gold and Custom Pantone finishes
• rear brake kit for the 2005-2013 S CLASS that balances a front big brake upgrade

Set your pad compound and caliper colour for the W221 S 600 from the options above when you order your rear brake kit.