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The DBA 5000 Series replacement ring for 2009–2021 Nissan GT‑R rear applications provides two-piece rotor performance with high-carbon cast-iron rings paired to aerospace-grade T6061‑T6 aluminum hats. The NAS-bolted composite design lowers unsprung weight and improves heat control while supporting uniform radial expansion. DBA sells rings separately so owners can refresh discs without replacing 5000 Series hats.
DBA 09-21 Nissan GT-R Rear 5000 Series Replacement Ring
