This ported shroud compressor housing is compatible with any Garrett To4 turbocharger that uses a standard 'To4S' compressor housing. (To4S/GT35R/To4R/To4Z/GT4094/etc.)
Purchase of item requires an unmodified To4S compressor housing core exchange if purchased without a complete turbocharger.
TFE coating or polish service as pictured is available at an additional cost.
A recent back to back dynamometer test using a To4R compressor on a stock port Series 4 Turbo II RX-7 showed a 21rwhp gain @ 18psi/450rwhp.
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