I have a set of WAPs. 20,000 miles and 18 months or so later they're all working fine. My truck pops right off at well below zero F without being plugged in.
However, since it sounds like I'm in the minority regarding the success rate of these plugs, I probably wouldn't buy them again.
However, since it sounds like I'm in the minority regarding the success rate of these plugs, I probably wouldn't buy them again.