XYZ Racing Hollow Front Brake Kit — Audi RS4 B7 (2006-2008)

The B7 RS4 carries its 420bhp V8 in a nose that weighs more than the rear axle. The quattro system distributes drive, but physics does not distribute inertia so evenly when you are braking hard from speed. Close to 1,700kg travelling at circuit pace generates heat quickly, and the front discs carry the majority of that load. The factory Brembo setup is credible on road, but sustained track use, repeated late-braking points, and back-to-back sessions at Thruxton or the Nordschleife ask more than it was calibrated to deliver.

The XYZ Racing front big brake kit for the RS4 B7 addresses that gap directly. It fits as a matched pair of front calipers and two-piece floating discs across the front axle, with three pad compounds so the same hardware covers the full spectrum of RS4 use, from daily road driving through to serious circuit work.

What this brake kit does for your 2006-2008 Audi RS4 B7

The hollow-vane disc improves heat dissipation by maximising internal airflow as the disc rotates, relevant specifically for the RS4 B7, which rarely arrives at a braking zone without serious momentum thanks to that 4.2-litre V8 and all-surface quattro traction. The result is more consistent pedal feel across a longer run, with less fade and less modulation as the lap count climbs. The two-piece floating construction lets the disc expand without warping the bell and trims rotating and unsprung mass off the front corners, while braided lines come as part of the kit to firm up the pedal.

Three pad compounds let the owner match friction to actual use. Street is the quiet, low-dust default for the road. Sport lifts the thermal ceiling for occasional circuit days without the cold-temperature sensitivity of a full race material. Racing suits cars worked hard on a pre-warmed out-lap. The caliper finish reads through the B7’s alloys, so it is worth choosing carefully. Included painted colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost.

About the front brake kit

The disc takes a hollow-vane construction where the internal vanes are designed for airflow rather than added mass, keeping rotational inertia in check while raising the thermal ceiling under repeated hard stops. The calipers are hollow-bodied as standard for strength without excess weight, with an optional Hollow Racing upgrade for track-only sessions that drops the dust cover, is rated to 1000C and carries a two-year warranty. The three-compound pad specification is the practical centre of the package: Street for predictable road response, Sport for circuit days without losing road usability, and Racing for a higher temperature range.

Beyond the included painted finishes, a Custom Color in any Pantone is available, along with premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange, covering both subtle and conspicuous presentations. Discs come drilled or slotted at the same price, and centre-bell upgrades, two-tone in five anodized colours or in titanium, are selectable at checkout.

Fitment for the Audi RS4 B7 (2006-2008)

This kit fits the Audi RS4 in B7 specification across the full 2006 to 2008 model year run, covering both the saloon and Avant body styles in left- and right-hand drive, each sharing the same front brake architecture around the B7 platform’s 4.2-litre V8 quattro drivetrain.

What buyers also search for

• Audi RS4 B7 front brake upgrade for track day and fast-road use
• B7 RS4 hollow-vane disc brake kit with the Racing pad compound option
• Audi RS4 2006-2008 big brake kit with caliper finish choice
• XYZ Racing front brake kit for the quattro RS4 with multi-compound selection
• RS4 B7 brake fade solution for sustained circuit sessions

Select your pad compound and caliper finish from the options above, and we build it to your spec.