The HKS special wastegate for FD3S 13B-REW applications is built to control boost on that rotary platform and integrate with the engine's forced induction plumbing. Named for its FD3S 13B-REW fit, the unit provides the wastegate function required to regulate exhaust-driven boost pressure for compatible rotary turbo setups without implying additional hardware beyond the described application.
HKS FD3S 13B-REW SPECIAL WASTEGATE