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The Garrett GT28R THWA turbine housing kit features an over/under T25 5-bolt flange with a 0.86 A/R in high-silicon material, providing an option for GT28R builds that require a larger A/R and a T25-style turbine flange. Designed as a hardware component for turbo fabrication or upgrade, the description emphasizes the housing’s flange type, A/R and material choice without specifying vehicle application or installation details.
Garrett GT28R THWA Kit O/V T25 / 5-Bolt 0.86 A/R (Hi Sil)
