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The HKS O2 Sensor Boss + Bolt 5pc set provides threaded bosses and mounting bolts to install oxygen sensors into exhaust systems or plumbing where a new bung is required. The set supplies multiple bosses for fabricators or installers working on custom exhaust or sensor relocation jobs, letting technicians add O2 sensor ports cleanly where needed for tuning or monitoring.
HKS O2 Sensor Boss + Bolt 5pcs set
