XYZ Racing Hollow Rear Brake Kit — Subaru FORESTER φ 290/ φ 171 (2003-2007)

The SG Forester carries more mass high in the body than the Impreza it shares a platform with, and on a symmetrical AWD wagon the rear axle does far more braking work than most owners expect. The standard rear discs were specified for a family crossover, not for the loads a tuned EJ turbo car or a hard-driven daily puts through them on a twisty road. This XYZ Racing rear brake kit puts a 290mm disc and a matched caliper where the factory setup runs short.

It is a rear-axle upgrade aimed at brake balance, not headline stopping power alone, supplying a matched pair of rear calipers and two-piece floating discs. Paired with a capable front setup, the larger rear rotor keeps the back of the car composed under heavy, repeated braking, so the Forester settles instead of squirming when you lean on the pedal on the way into a corner.

What this brake kit does for your 2003-2007 Subaru Forester

The first thing you notice after fitting is how much more confident the car feels trail-braking into a roundabout or a downhill bend. The 290mm rear disc adds thermal mass, so the rear pads have more metal to soak up heat before they fade on a long descent or a run of back-to-back stops. With three pad compounds available, Street, Sport and Racing, you can match bite and temperature window to how the Forester is actually used, from a tuned road car to occasional track work. More rear heat capacity also takes load off the front brakes, which on a nose-heavy AWD wagon are usually the first to give up. The result is a steadier, more predictable rear end under braking, and a balance that holds even when the car is loaded with passengers and kit.

About the rear big brake kit

XYZ Racing builds this around a two-piece floating disc, using a hollow-vane friction ring that trims rotating mass while still adding diameter over the factory part, mounted to an alloy bell that lets it expand under heat without warping. The disc works with a supplied caliper and mounting hardware engineered to bolt to the Forester’s rear hub rather than being forced on from another application. The headline figures, a 290mm primary diameter and a 171mm secondary diameter, come straight from the kit’s own designation, so the parts are sized to this chassis. Disc faces come drilled or slotted at the same price, chosen when you order. Pad choice spans a Street compound for road-biased use, a Sport compound for faster road and light track duty, and a full Racing compound for sustained high-temperature work. The caliper bodies are hollow-cast as standard, with an optional Hollow Racing upgrade for track-focused cars that removes the dust cover, is rated to 1000C and carries a two-year warranty. Calipers are offered in Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a custom Pantone finish if you want them to match a wheel or theme behind the spokes. It is the bolt-on rear half of a balanced big brake setup, not a universal part.

Fitment for the Subaru Forester (2003-2007)

This kit is specified for the Subaru Forester built from 2003 to 2007, the SG-generation turbo and naturally aspirated wagons on Subaru’s symmetrical AWD platform. It fits the rear axle and is sized to the 290mm / 171mm dimensions listed for this application. Confirm your model year, and that you are ordering the rear kit, before you set caliper colour and pad compound.

What buyers also search for

• Subaru Forester rear brake upgrade for tuned turbo and fast-road builds
• 2003-2007 Forester 290mm rear disc kit to balance a front big brake setup
• Subaru Forester rear brake kit with Street, Sport and Racing pad options
• SG Forester rear caliper colour choices including Red, Black, Gold and Anodized Black
• Forester rear brake fade fix for track days and heavy daily driving

Choose your pad compound and caliper colour, then build your rear brake kit from the options above.