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The HKS extension kit is made for RB26DETT applications and is not compatible with the GTIII Sport Turbine Kit. Provided as a hardware extension solution for that engine platform, it supplies the components required to extend or adapt the existing HKS turbo plumbing where permitted. Confirm compatibility with your turbine and accessory configuration before ordering.
HKS EXTENSION KIT RB26DETT(Not for GTIII Sport Turbine Kit)
