XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES E 46 323 (1998-2006)

The E46 323’s smooth M52TU straight-six sits over a chassis that happily carries more corner speed than its standard rear brakes were ever asked to scrub off repeatedly. On a fast B-road or a track session, it is the back axle that signals first, a softening pedal, a bit more travel each lap, long before the front end gives up. The XYZ Racing Hollow Rear Brake Kit goes straight at that weakness.

This is a rear-specific upgrade for the 1998-2006 BMW 3 Series E46 323, supplied as a left-and-right pair and built to restore bite and consistency at the axle the standard setup leaves doing the least. It pairs a two-piece floating disc with a choice of pad compound, so you can match the rear balance to how the car is actually driven rather than accepting the factory compromise.

What this big brake kit does for your 1998-2006 BMW 3 Series E46 323

The two-piece floating disc and its hollow-vane rotor trim rotating and unsprung mass at the E46’s multi-link rear, which the Z-axle geometry rewards with cleaner damper response over mid-corner bumps. The real gain you feel is repeatability: a firmer pedal that holds its position deeper into a braking zone instead of creeping as heat builds. Choosing the Racing compound sharpens initial bite for circuit work, the Sport compound suits hard road and the occasional track lap, and the Street compound keeps cold-brake manners and disc life sensible for daily driving while staying quiet and low on dust. With the rear doing more of the deceleration, the 323’s natural balance stays neutral on entry rather than washing into understeer as the fronts shoulder the load alone.

About the Hollow rear brake kit

The Hollow rear brake kit takes its name from the hollow-vane rotor on its two-piece floating disc, which drops rotating weight while opening up cooling paths to fight heat soak across repeated stops. It is a rear-axle kit, supplied as a pair with a calliper, disc and pad package matched to the E46 323’s mounting. Three pad compounds are offered, Street, Sport and Racing, so the kit spans everything from a quieter road setup to a harder circuit-focused friction level. Disc faces can be drilled or slotted at the same price. Calliper finishes come in Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone and premium polished-forged or candy options if you want the rear to sit behind the wheel in something specific. The emphasis is consistency under load rather than headline single-stop figures, which is what a six-cylinder E46 driven hard actually needs at the back.

Fitment for the BMW 3 Series E46 323 (1998-2006)

This kit is for the rear axle of the E46-chassis BMW 3 Series 323, model years 1998 to 2006, mounting as a left-and-right pair. Pad compound is selectable between Street, Sport and Racing, and calliper colour can be set from Red, Yellow, Gold, Black, Anodized Black or a custom finish. Confirm your exact chassis and build year before ordering.

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Pick your pad compound and calliper colour and build your E46 323 rear kit using the options above.