I have the Fujita CAI with the TIP and I havent had an issue with it in rain. Now I do love in Las Vegas, but I constantly drive to Socal and between Barstow and my old house, it can get nasty. At one point, it was raining so hard the traffic had to go down to the middle lane on the freeway because the sides were flooding. I was insanely careful, but still did not have a problem then and still havent had a problem now.