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CVO Technical => Intake/Exhaust/ECM => Topic started by: Fatboy1904 on January 18, 2021, 10:34:57 AM

Title: 2020 Stock Header Pipe and O2 sensor ports
Post by: Fatboy1904 on January 18, 2021, 10:34:57 AM
Has anyone attempted to replace the stock 02 sensors on a 2020 ?   Does the stock pipe accept the wideband 02 sensor (18mm) ?  My hope is that the stock pipe has 18mm port and using a 12mm adapter for the narrow band stock 02 sensor.  I have not taken the exhaust apart yet but hoping someone else has that can answer this question.   I'm looking to add the Harley Smart Tune Pro.
Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: CVO Couple on January 18, 2021, 05:33:01 PM
Most likely they are 12mm, a visual inspection and what size wrench fits them will confirm. Some pipes can be drilled and tapped out for 18mm.


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Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: Tbone on January 18, 2021, 06:21:59 PM
I’ve got the Smart Tune and the wideband sensors installed by my dealer, I think they had to drill the head pipes but don’t know for sure.
Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: Fatboy1904 on January 18, 2021, 08:31:17 PM
@TBone - did you ride it before and after adding the Smart Tuner ?  Mine feels pretty good now, but I'm curious if it can be that much better with new head pipe, wide O2 sensors and the Auto Tuner from HD.
Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: Tbone on January 18, 2021, 10:02:43 PM
Quote from: Fatboy1904 on January 18, 2021, 08:31:17 PM
@TBone - did you ride it before and after adding the Smart Tuner ?  Mine feels pretty good now, but I'm curious if it can be that much better with new head pipe, wide O2 sensors and the Auto Tuner from HD.
I didn’t, I had them do it before I took delivery.
Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: mstrobes on January 18, 2021, 10:52:24 PM
stock pipes have to be drilled and tapped for wideband.
Title: Re: 2020 Stock Header Pipe and O2 sensor ports
Post by: 2019CVONH on January 21, 2021, 08:35:16 PM
Quote from: Fatboy1904 on January 18, 2021, 10:34:57 AM
Has anyone attempted to replace the stock 02 sensors on a 2020 ?   Does the stock pipe accept the wideband 02 sensor (18mm) ?  My hope is that the stock pipe has 18mm port and using a 12mm adapter for the narrow band stock 02 sensor.  I have not taken the exhaust apart yet but hoping someone else has that can answer this question.   I'm looking to add the Harley Smart Tune Pro.
They are for sure narrow band 12 mm. You can replace them with the wide band but just get a new pipe. 


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