The Brembo rear big brake kit for 1996–2005 550/575 (excluding GTC) applications features a four-piston billet caliper and a 380x28 two-piece drilled nickel-plated rotor. Marketed as a GTR BBK rear assembly, it installs in place of stock rear hardware and uses drilled rotor faces and two-piece construction to assist with thermal management and water or gas evacuation while keeping original mounting compatibility.
Brembo 96-05 550/575 (Excl. GTC) Rear GTR BBK 4 Piston Billet 380x28 2pc Rotor Drilled- Nickel