Brembo GT-R front big brake kit for the B6/B7 S4: six-piston billet monobloc calipers, 355x32mm two-piece floating rotors on aluminium hats, kit-matched pads, stainless braided lines and vehicle-specific mounting brackets. The caliper is machined from a single billet rather than cast in halves and bolted together, and is supplied nickel-plated. The 4.2 V8 sits well forward in this chassis, so the front axle does most of the work and benefits accordingly.
Verified fitment
2004-2008 Audi S4 (B6 and B7), including Avant and Cabriolet. Front axle only. This is the 355x32mm package; Brembo also builds a 365x34 GT-R for the same car, which is a different kit. Check wheel clearance against the Brembo template before ordering.
Choosing your rotor face
Drilled gives the pad a fresh edge to bite on with every revolution, helps push water off the disc face in the wet, and vents the gases a hot pad gives off. It is also the classic look through an open wheel.
Slotted keeps the casting continuous, so there is more uninterrupted material in the disc under sustained heat, and the slots sweep glaze off the pad face as it wears in. Cars that see repeated hard stops or track days generally end up on slotted; street and show builds often prefer drilled.
Type-1 vs Type-3 is slot geometry, not a performance grade. Type-1 runs longer, shallower-angled slots; Type-3 a shorter, more frequent pattern. Choose on appearance.
All three rotor faces are available to order at Rev Auto Club. Select your rotor face above.
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