Big Brake Kit
XYZ Racing Hollow Rear Brake Kit — Subaru IMPREZA GC8 (WRX) φ 265/ φ 171 (1993-1998)
SKU: XYZ-BRK-BKR-SU-003-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø330–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Subaru IMPREZA GC8 (WRX) φ 265/ φ 171 (1993-1998)
Added to basket ✓
Caliper render for this kit:
Left-foot braking is how you rotate a symmetrical-AWD GC8 Impreza through a corner, and that habit puts real heat through a rear axle the factory only lightly braked. The XYZ Racing Hollow Rear Brake Kit for the Subaru Impreza GC8 (WRX) answers that directly, replacing the modest standard rear disc with a 265mm two-piece floating setup and a fixed multi-piston caliper sized for this chassis.
On a 1990s WRX driven hard on track or a tarmac stage, the original rear discs heat-soak inside a single session and the pedal starts to go long. This rear kit gives the thermal headroom to keep the back axle working with you rather than fading out from under you when you most need it to bite. It is a pair of rear calipers and discs for the left and right rear corners, engineered to lift the back of the car to the same standard as a matched front upgrade.
What this brake kit does for your 1993-1998 Subaru Impreza GC8 (WRX)
The on-car difference shows up first in pedal consistency. The larger 265mm rear disc carries and sheds more heat than the original, so repeated heavy stops on a 1993-1998 GC8 hold a firmer pedal instead of fading deep into a run. Because the GC8’s AWD shuffles drive rearward under power, a rear axle that brakes predictably lets you trail-brake and rotate the car on the brakes with confidence rather than guesswork. Pad compound is your tuning lever: the Street compound keeps everyday road manners quiet and low-dust, the Sport compound adds bite and heat range for fast road and the occasional track day, and the Racing compound is built for back-to-back stages and circuit sessions. The net result is a rear end that stays composed when you lean on it.
About the Hollow Rear Brake Kit
XYZ Racing’s Hollow Rear Brake Kit is the brand’s rear big brake upgrade, built around the 265/171 disc sizing paired with a fixed multi-piston caliper that replaces the GC8’s sliding factory unit. The caliper body is a hollow-cast forging as standard, which trims weight while keeping the rigidity that gives a firm pedal. The two-piece floating disc lets the friction ring expand and shed heat independently of the alloy bell, holding the rotor flatter under sustained load. Disc faces come drilled or slotted at the same price, and the centre bell can be upgraded to a two-tone anodized finish in five colours or to titanium, all selectable at checkout. Calipers are painted Red, Yellow, Gold, Black or Anodized Black at no extra cost, with a Custom Color in any Pantone available for £150, plus premium polished-forged finishes in Titanium, Polished Gold and Polished Silver, and candy finishes in Teal, Blue, Red and Orange. For dedicated track use, a Hollow Racing caliper upgrade drops the dust cover, is rated to 1000C and carries a two-year warranty. Three pad compounds span the range, and every part is matched to the rear axle of the first-generation Impreza so it complements front brake balance rather than overwhelming it.
Fitment for the Subaru Impreza GC8 (WRX) (1993-1998)
This kit is cut for the Subaru Impreza GC8 (WRX) across the 1993-1998 model years, fitting the rear axle of the first-generation turbo chassis. The 265/171 disc sizing and the caliper are matched to this fitment. Confirm your exact model year when you order so the spec lines up with your car.
What buyers also search for
- Subaru Impreza GC8 rear brake upgrade for track days and tarmac rally stages
- WRX rear big brake kit with a 265mm disc for stronger heat management
- 1993-1998 Subaru Impreza GC8 rear brake kit with Street, Sport and Racing pad options
- GC8 Impreza caliper colour choices from Red and Gold through to a Custom Pantone
- Subaru Impreza rear brake balance upgrade for left-foot braking on AWD
Pick your pad compound and caliper colour using the options above, then build your GC8 rear setup.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 330–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 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: Retains your original (OE) handbrake.
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.
Same car
Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car