I'm looking for the same thing (sort of). I just bought 18" ASA GT1's for an e46 3 series. The ASA cap is about 64mm - all of the pop in type BMW center caps are 68mm. I have an aluminum decal that is 64mm that would have to have the edge trimmed off to fit within the lip of the ASA cap. The only problem is the decal is concave, so it won't lay flat and 'glue' on.
I'm trying to find a source for either a flat 64mm aluminum 'decal' or better yet, a 64mm pop in that will work with the ASA wheel. I have done extensive searches of ebay, amazon, and many Google searches that brings up many caps for OEM replacement.
This is what I want.
http://forum.e46fanatics.com/showpos...88&postcount=1
Any help will be appreciated.