XYZ Racing Hollow Rear Brake Kit — Audi S3 8V QUATTRO (2014-2026)

The 8V S3’s front-biased Haldex quattro and transverse 2.0 TFSI carry most of the car’s mass over the nose, which leaves the rear axle doing comparatively little of the braking on the road. Push the same chassis hard on a circuit and that balance starts to bite: the fronts cook, the pedal lengthens, and the rear has nothing left to give. The XYZ Racing Hollow Rear Brake Kit for the Audi S3 8V Quattro is built to bring the back axle into the conversation.

Fitted to the rear of the 2014-2026 8V, this is a kit for owners who track their S3 or lean on it down a fast B-road and have already sorted the front end. Two-piece floating rotors, three pad compounds and a full set of caliper finishes let you match the rear setup to how the car is actually used.

What this brake kit does for your 2014-2026 Audi S3 8V Quattro

On a Haldex car that sends drive rearward only when it needs to, a stronger rear brake gives you something the standard setup cannot: consistent bias when you are hard on the pedal into a corner. The two-piece floating disc strips rotational and unsprung mass from the rear axle, which sharpens the MQB platform’s turn-in and settles the car under trail-braking. The three pad compounds cover the full range: the Street compound for quiet, low-dust daily driving, the Sport compound for committed road use and light track work, and the Racing compound for repeat heavy stops where heat is the enemy. Braided lines keep the pedal firm as it heats. You feel it as a firmer, more progressive pedal that holds its travel through a hard session rather than going long. Choose from Red, Yellow, Gold, Black or Anodized Black at no extra cost, or a custom Pantone caliper finish, so the rear hardware matches the rest of the car.

About the Hollow Rear Brake Kit

The kit centres on two-piece floating rotors with hollow internal vanes, machined to shed weight and expose more surface area for heat to escape, the two things that matter most on a brake working at the back of a hard-driven hot hatch. The forged caliper is hollow-bodied as standard. Lighter discs mean less rotating mass for the S3 to slow and bring back up to speed, while the cooling-led design helps the rear resist the fade that creeps in once disc temperatures climb. The system is configured specifically for the rear axle rather than adapted from a front kit, so the clamping force suits the loads the back of the car actually sees. Pad choice runs across three compounds, Street, Sport and Racing, letting the same hardware serve a road-biased S3 or a dedicated track build. Caliper colours, including a custom Pantone option, plus drilled or slotted discs at the same price and two-tone anodized or titanium centre bells, cover finish without affecting function. Braided lines are included. It is a rear upgrade aimed at drivers who want the whole car braking in balance, not just the front.

Fitment for the Audi S3 8V Quattro (2014-2026)

This kit is sized for the 8V-generation Audi S3 in quattro form, covering the 2014 to 2026 model span. It fits the rear axle only, as a pair of rear calipers and discs, and is intended as a complement to a matched front setup. Confirm your car is the 8V quattro variant before ordering, as fitment is specific to this chassis.

What buyers also search for

• Audi S3 8V rear brake kit for track days and committed fast-road use
• Two-piece floating rotor upgrade for the quattro S3 to cut rotational mass
• S3 8V rear brake setup with Racing pad compound for repeat heavy stops
• Rear big brake kit options for the 2014-2026 Audi S3 without losing road manners
• Coloured caliper choices for the Audi S3 8V Quattro rear brake kit

Pick your pad compound and caliper colour to suit how you drive your 8V S3, and build yours using the options above when you order.