NAMZ, adapter and extension of the O2 sensor cap for Harley-Davidson

It is used to reduce the escape sensor thread from 18 mm to 12 mm, so the latest H-D models, equipped with 12 mm O2 sensors, can be used with previous escapes with 18 mm sensor.
Includes the O2 sensor extension cable required for Touring 10-16 models.

Compatible with:> 10-16 Touring (with an escape prior to 2010)