2PCS Stainless Adapters Reduce Sensor Ports Bungs 18MM To 12MM For Harley Plug

2Pcs Bassani Adapters Reduce Sensor Ports Bungs 18MM To 12MM Fit For Harley Plug

2PCS Bassani Adapters Reduce 02 O2 Sensor Ports Bungs 18MM To 12MM Harley Plug

Chrome Stainless Adapters Reduce Sensor Ports Bungs 18MM To 12MM For Harley Plug

Fit For Harley Davidson Exhaust Reducer Oxygen Sensor Ports 12MM-18MM Hole -2PCS

Bassani Adapter Reduce 02 O2 Sensor Port Bungs 18MM To 12MM Fit For Harley Plug

Steel Adapters Reduce 02 O2 Sensor Ports Bungs 18MM To 12MM Fits for Harley Plug

Exhaust Pipe / Muffler Adapter Reducer Sleeve Adapters Kit Set 1.5" 1-5/8" 1.75"