
XYZ Racing Hollow Rear Brake Kit — Audi TT 4WD 8N (1998-2006)
SKU: XYZ-BRK-BKR-AU-008-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Audi TT 4WD 8N (1998-2006)
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Caliper render for this kit:

On the 8N TT quattro, the weight sits over the nose and the Haldex coupling keeps drive going forward until the fronts start to slip, which means the standard rear brakes spend most of their life under-worked, then get overwhelmed the moment you brake hard from speed. The XYZ Racing rear big brake kit for the Audi TT 4WD 8N is built to bring that rear axle back into the conversation.
This is a rear-end upgrade for owners who have already found the limit of the factory setup on a fast B-road or a track day. It restores front-to-rear balance, gives the rears the thermal headroom to keep working across a session, and lets you pick the pad compound that matches how hard you actually drive.
What this brake kit does for your 1998-2006 Audi TT 4WD 8N
Fit it and the first thing you feel is a firmer, more progressive pedal that holds its height as the discs heat up. With the rear axle pulling its share, the 8N’s habit of diving and pushing at the front under heavy braking settles down, so the car stays flatter and more neutral on the way into a corner. The Racing compound shrugs off fade through repeated stops from three-figure speeds, while the Street compound keeps noise and dust low for everyday driving and the Sport compound bridges the two for fast-road use. Across the board you get more braking confidence from a chassis that, in standard rear-brake form, runs out of stopping power long before the quattro grip runs out.
About the rear brake kit
This is a direct rear-axle kit for the 8N platform, supplied as a matched pair of left and right rear calipers and discs. The two-piece floating disc cuts unsprung and rotating mass while raising heat capacity over the original equipment, and the hollow-vane construction sheds temperature fast between stops. The forged caliper body is hollow as standard, with an optional Hollow Racing upgrade that drops the dust cover, carries a 1000C rating and a two-year warranty for hard track work. Pad choice is yours: Street for quiet, low-dust road use, Sport for a firmer fast-road bite, and a full Racing compound for track and competition. Discs are offered drilled or slotted at the same price, fed by braided lines for consistent pedal feel. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for a small upcharge, plus premium polished-forged finishes (Titanium, Polished Gold, Polished Silver) and candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange). Centre bells can go two-tone in five anodized colours or titanium, chosen at checkout. Because it works the rear specifically, it is meant to complement a front upgrade and correct the brake balance rather than just pile stopping power onto one end. The result is a rear that contributes properly to deceleration instead of trailing the fronts.
Fitment for the Audi TT 4WD 8N (1998-2006)
This kit is cut for the 8N-generation Audi TT in 4WD quattro form, covering the 1998 to 2006 production run, and it fits the rear axle. Confirm your build year and quattro drivetrain against the listing before ordering so the kit matches your exact car.
What buyers also search for
- Audi TT 8N rear brake upgrade for track days and fast-road use
- Audi TT 4WD quattro rear big brake kit with a Racing pad option
- Audi TT 8N brake-balance fix for a nose-heavy braking chassis
- Coloured caliper choices for the Audi TT 4WD 8N rear brake kit
- Audi TT 8N rear brake kit that holds up to repeat stops without fade
Choose your pad compound and caliper colour, then build your Audi TT 8N rear brake kit using the options above.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: OE handbrake not retained — a hydraulic handbrake is required.
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).


Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
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More XYZ products for the Audi TT 4WD 8N appear here as the rest of the range publishes.