When upgrading to a K27-series turbocharger, the compressor housing outlet connection is incompatible with the factory original cast aluminum charge pipe leading to the intercooler.

The original equipment 1978-89 930 / 911 Turbo 3LDZ turbochargers feature an integrated o-ring seal on the outlet neck of the compressor housing.  This compressor adapter adds that factory o-ring connection to a K27 turbocharger compressor housing outlet, allowing the original boost charge pipe to simply press on without modification.

CNC-machined billet aluminum, with new o-ring seal and installation materials.