XYZ Racing Hollow Rear Brake Kit — Audi S8 4.0 D4 (12 POINTS 8.0MM) (2010-2017)

The D4 Audi S8 hides close to two tonnes behind a twin-turbocharged 4.0 TFSI V8 that makes covering ground deceptively effortless, which is exactly why the rear axle’s stopping power matters more than most owners assume. The XYZ Racing Hollow Rear Brake Kit for the Audi S8 4.0 D4 (2010-2017) swaps the standard rear setup for a stiffer, better-ventilated package built to absorb the heat a heavy quattro super-saloon generates under repeated hard stops.

On a car this fast and this heavy, rear brake fade announces itself as a long, vague pedal and a nose that keeps diving well after you have lifted off. This kit is aimed at owners who actually exploit the S8’s pace, with sustained fast-road driving, autobahn cruising and the occasional track day, and want the rear axle carrying its share of the deceleration rather than heat-soaking after a few big stops.

What this big brake kit does for your 2010-2017 Audi S8 4.0 D4

After fitting, the first thing you feel is a firmer, more progressive pedal that holds its travel as temperatures climb. The two-piece floating disc’s improved ventilation keeps bite consistent through back-to-back stops, so the brake balance stays predictable instead of migrating forward as the standard rears give up. Three pad compounds, Street, Sport and Racing, let you match the rear axle to how you drive the S8, whether that is refined daily commuting, harder fast-road work or circuit use. Braided lines hold the pedal firm under heat. And with five included caliper finishes plus a custom Pantone option, the kit looks the part behind the S8’s large-diameter wheels.

About the Hollow rear brake kit

The Hollow rear brake kit is built around a two-piece floating disc with hollow internal vanes, trimming rotating and unsprung mass at the rear axle where it benefits ride and response most while routing cooling air through the casting. The forged caliper is hollow-bodied as standard. Pad compound is configurable across three stages: a Street pad for quiet, low-dust road use, a Sport compound for harder fast-road driving and light track work, and a Racing compound for track temperatures. The kit ships to the rear-specific 12 Points 8.0mm mounting specification listed for this fitment, so the disc and bell geometry is matched to the D4 chassis rather than adapted from a generic part. Caliper finishes run from Red, Yellow, Gold, Black and Anodized Black at no extra cost through to a custom Pantone option, letting you set the look once and forget it. Braided lines are included, discs come drilled or slotted at the same price, and the centre bell can be upgraded to two-tone anodized in five colours or titanium.

Fitment for the Audi S8 4.0 D4 (2010-2017)

This is a rear-axle kit for the D4-generation Audi S8 4.0 across the 2010-2017 model years, a pair of rear calipers and discs built to the 12 Points 8.0mm specification (SKU XYZ-BRK-BKR-AU-014-REAR). Confirm your car is the D4 S8 with the matching rear hub spec before configuring, and pair with a front kit if you want a balanced upgrade across both axles.

What buyers also search for

• Audi S8 D4 rear big brake kit for fast-road and track use
• Audi S8 4.0 brake upgrade that resists fade under repeated heavy stops
• Rear brake kit for the 2010-2017 Audi S8 with selectable pad compounds
• Audi S8 D4 caliper colour options, Red, Yellow, Gold, Black, Anodized Black or custom Pantone

Choose your pad compound and caliper colour, then configure yours using the options above when you order.