XYZ Racing Hollow Rear Brake Kit — Bmw 5 SERIES E 39 M5 (1998-2003)

The E39 M5 carries its near-1.8-tonne kerb weight with deceptive calm, and the rear axle does more braking work than most owners credit, especially as the S62 V8 pushes the car deep into a corner under trail braking. The XYZ Racing Hollow Rear Brake Kit for the BMW 5 Series E39 M5 (1998-2003) targets the back end specifically: more thermal headroom and a firmer pedal exactly where the standard rear setup begins to fade on repeat stops.

This is a rear-axle kit, a pair of left and right rear calipers and matched discs, built for a powerful rear-drive saloon that gets used hard. With three pad compounds and two-piece floating discs that trim rotating and unsprung mass, it spans committed fast-road driving and track days where the M5’s mass punishes lesser rear brakes.

What this brake kit does for your 1998-2003 Bmw 5 Series E 39 M5

After fitting, the difference shows up where this car needs it most, braking stability and stamina. The two-piece floating disc cuts mass from the rotating assembly at the rear axle, sharpening how quickly the rear responds and easing the load on the dampers over broken surfaces. Pad compound choice lets you match the car to its job: Street for quiet, low-dust road use, Sport for harder give-and-take driving with occasional track work, and Racing for sustained circuit sessions where heat is the enemy. Because this is the rear of a heavy rear-drive saloon, consistent rear bias keeps the M5 settled rather than nervous when you brake late, and that composure is what lets you commit deeper into a corner.

About the Hollow rear brake kit

The Hollow rear brake kit is XYZ Racing’s lightweight take on a rear big brake upgrade, a pair of left and right rear calipers and matched discs. Its defining feature is the two-piece floating rotor, machined to shed weight from the rotating mass without surrendering the swept area and venting a heavy saloon demands. The caliper body is hollow as standard, with a Hollow Racing upgrade for serious track use, no dust cover, rated to 1000C and backed by a two-year warranty. The disc is paired with a multi-piston caliper offered in the included painted finishes, Red, Yellow, Gold, Black and Anodized Black at no cost, with a Custom Color in any Pantone available, so the hardware can sit discreetly behind the wheel or stand out. Three pad compounds are available, Street, Sport and Racing, covering road, fast-road and circuit duty in turn. Discs come drilled or slotted at the same price, with centre-bell upgrades selectable at checkout. As a position-specific rear kit, it is designed to balance a matching front upgrade, or to address rear fade on a car whose original discs were never sized for sustained hard use.

Fitment for the Bmw 5 Series E 39 M5 (1998-2003)

This kit is cut for the BMW 5 Series E39 M5 built between 1998 and 2003, the S62-engined, manual-only generation, not the six-cylinder 5 Series or the V8 540i. It fits the rear axle only. Confirm your build year falls inside the 1998-2003 window before ordering, and decide whether you are running it alongside a matching front kit.

What buyers also search for

• BMW E39 M5 rear brake upgrade for fast road and track use
• 5 Series E39 M5 rear big brake kit with lightweight two-piece discs
• E39 M5 Racing pad compound for repeat heavy braking on track days
• BMW 5 Series M5 rear caliper colour options including red, gold and custom
• E39 M5 rear brake kit to balance a front big brake upgrade

Choose your pad compound and caliper finish from the options above to configure your E39 M5 rear kit.