Gang,
instead of going to all the hassle of retrofitting the rear bumper to get the dual ports, has anyone tried to use these and just cut/fit/adapt them into our regular bumpers? Seems like it might work easier. Just a thought
Nothing will be "easier" about doing a custom retrofit like that, and your odds of getting it functional are even slimmer. It may be cheaper, yes, but certainly not easier than bolting on OEM parts.