Vance and Hines True Dual Headers
#12
I may have an interest, and have what’s probably a stupid question for you, I am assuming the bungs are for the O2 sensors, but why are there 2 sizes? I have a 2015, not sure what size it uses.
Any Idea what ones would be used? If not the 18mm, how do you plug them? And will I have to be worried about exhaust leaks?
Any Idea what ones would be used? If not the 18mm, how do you plug them? And will I have to be worried about exhaust leaks?
#13
Not a stupid question at all, factory O2 sensors (narrow band sensors) have been 12 mm on the touring since 09, I believe... if you want to add wide band sensing systems such as target tune/auto tune they will require 18 mm holes... no problems with leaks, they just require plugs or bolts to be installed... Most aftermarket systems now days will have both holes for either 12 or 18 mm. So you will just need the 12 mm holes.