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The PERRIN shifter detent kit for 2004–2021 Subaru STI firms up gear engagement by reducing detent play within the factory shifter assembly. The red detent adapter installs into the stock mechanism to provide a crisper, more direct shift feel; verify year and transmission compatibility before ordering to ensure correct fitment and expected shifter behavior.
PERRIN 04-21 Subaru STI Shifter Detent Kit - Red
