This stuff, huh?
303 Products, Inc.: 303 Aerospace Protectant
I am going to have to give it a try. The black plastic on your X looks amazing. Interesting that one of their suggested applications is on CV boots. Since ours are notorious for cracking, I wonder if applying this product would extend their life? I knew a guy who put a similar product on his cooling hoses when he washed his car becasue he thought it extended their life.
Glad to hear on the S/T II's. I am going to get a set as well when my original S/T's are completely shot. So far I have over 40,000 miles on them and my only complaint has been noise.