2021 vaquero vanice and hines double slash

[24racefan]

Was told that you could not put the Vance and Hines double slash exhaust on a new bike because of the O2 sensor. I used the same part number exhaust that I had on my 2010 nomad and when I got them I mod. the new one so the O2 would fit. Worked out great. I cut the fitting for the O2 out of the stock muffler then drilled a new hole in the VH muffler and welded it up. If you do this make sure you install the O2 sensor in the fitting before you weld. I had to run a tap down the threads after welding because of slag in the threads. Warning: If you have not got your ECU tuned this will make the backfiring sound like gun shots. I am waiting for winter to send in my ECU to IVAN . On my 2010 that tune made my bike seem like a new bike.