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The DBA 5000 Series replacement ring for Subaru WRX STI (2005–2017) front applications is a component of a composite two-piece direct-replacement rotor using a high-carbon cast-iron ring and an aerospace-grade aluminum hat. The HD variant offers an OE-style smooth finish; T6061-T6 hats and NAS hardware reduce unsprung weight and help control heat transfer, making the 5000 Series suitable for spirited street driving and club-level competition.
DBA 05-17 Subaru WRX STI Front 5000 Series Replacement Ring
