I bought a set of 16x6.5 steelies off tirerack for my 2011 WRX and didn't realize until I got them that there's no dust caps to cover the axle nut. I saw pictures of a car just like mine wit the same steelies and it didn't look like he had any dust caps. Should I not worry about it? That nut seems to be sealed but I don't want any salt and **** in there. I searched and only found 1 thread from 2001 with 3 replies that didn't help much. Thanks for any help you can provide.