BASSANI O2 SENSOR PORT EXHAUST ADAPTORS 18MM TO 12MM BILT Features a billet aluminum backing

Features a billet aluminum backing plate with hidden integrated breather system and a plexiglass outer cover

It functions as a source

Three stages for consistent pressure and reliable scavenging

gears are cut before heat treating then precision ground with a diamond coated tooling for quieter operation

Fairing speakers grills include black and chrome trim

BASSANI O2 SENSOR PORT EXHAUST ADAPTORS 18MM TO 12MM BILT Features a billet aluminum backingBASSANI O2 SENSOR PORT EXHAUST ADAPTORS Threaded outer and inner adapters reduce O sensor port from 18 mm to 12 mm allowing riders to use our exhaust pipes on select, newer model motorcycles Sold in pairs Made in the U. S. A.