XYZ Racing Hollow Rear Brake Kit — Mercedes Benz C CLASS S206 C43 AMG 4MATIC (2021-2026)

The S206 C43’s rear axle works harder than its badge suggests. Mercedes-AMG hangs a 48-volt mild-hybrid system and a rear-biased 4MATIC driveline off the back of this car, so the rear brakes do far more than trim speed at the lights – they manage a heavy tail under repeated hard stops. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz C Class S206 C43 AMG 4matic (2021-2026) replaces the standard rear setup with a larger, more thermally stable package built to survive that workload.

Big-brake upgrades usually get fitted at the front and forgotten at the rear, which is exactly how a fast C43 ends up with an unbalanced pedal after three hot laps. This rear kit, supplied as a matched pair of rear calipers and discs, keeps the back axle in step with an uprated front, so the car stays settled under trail-braking instead of pitching forward. With Street, Sport and Racing pad compounds on offer, you spec the bite to match how the car actually gets used.

What this brake kit does for your 2021-2026 Mercedes Benz C Class S206 C43 AMG 4matic

Rear braking on a 4MATIC car is about composure as much as outright stopping power. The added swept area and thermal mass let the rear discs shed heat between corners, so the pedal stays firm rather than going long once the standard rotors heat-soak. The two-piece floating discs use hollow vanes to carry that heat while shedding rotating and unsprung mass, so the back end settles quickly under braking. On a road-and-track C43 that means the rear stays planted as you brake into a corner, with less of the nervous step-out that comes from an overworked rear axle. The three pad compounds let you tune rear bite from Street, the quiet low-dust road default, through Sport for fast road and the occasional track day, up to Racing for sustained circuit work. Caliper finishes in Red, Yellow, Gold, Black or Anodized Black at no extra cost let the hardware sit cleanly behind the spokes.

About the Hollow rear brake kit

The Hollow rear brake kit is XYZ Racing’s big-brake answer for the back axle, sized up over the factory rear discs to add heat capacity where the standard parts run short of it. The caliper is hollow-body as standard, with a Hollow Racing upgrade – dust-cover-free, rated to 1000C, backed by a two-year warranty – for cars run hard on track. It is supplied with a choice of three pad compounds: Street for everyday driving, Sport for harder road and occasional track use, and Racing for sustained circuit work where the rear needs to take heat without fading. Included caliper finishes cover Red, Yellow, Gold, Black and Anodized Black, with a Custom Color in any Pantone for £150, plus premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange. Discs come drilled or slotted at the same price, and two-tone centre bells in five anodized colours or titanium can be added at checkout. Because this is a position-specific rear kit, it is designed to pair with a matched front upgrade so overall brake balance stays where AMG intended, rather than tipping bias forward or back. The result is a rear end that recovers between stops and holds a consistent pedal through a session.

Fitment for the Mercedes Benz C CLASS S206 C43 AMG 4MATIC (2021-2026)

This kit is cut for the S206 C43 AMG 4MATIC built from 2021 to 2026 – the four-cylinder, mild-hybrid, all-wheel-drive C43 rather than the earlier V6 cars. It fits the rear axle specifically. Confirm your exact model year and that you are matching it to the correct front setup before ordering.

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Choose your pad compound, caliper finish and disc style, and the configurator above will build your S206 C43 rear brake kit.