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Discussion Starter · #1 ·
I have a 2022 can am outlander xmr 570 with the o2 sensor. Has or does anyone run the hmf exhaust and if so did you have the o2 bung installed or did you run it without the o2? I spoke with the hmf spokesman and they advised welding a bung on but would not be able to use the optimizer. Has anyone ran into any problems like this or does anyone have any advice or other options I should do?
 
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