Hey Guys...
Like many other people, I have had difficulties in getting a response from MSI here in the States before and have dealt with Compomotive direct in the UK.
I recently trashed a rear 17" Compomotive wheel and have been working with them to get it repaired/replaced.
Here is a portion of the latest email from them for your review....hope it helps !
From: sales@comp.co.uk
The HB centres are definitely Compomotive however we have never
manufactured a 4.5" outer or 4" inner. The 4" inner could be one of our 4"
outers used as an inner however we think the rims used on your wheels may have been produced in the USA by a company named KODIAK who we have found out supplied our USA dealer with rims parts.
If you only need an outer rim unfortunately we cannot supply this therefore it is probably best you try http://www.kodiakmotorsports.com who we think manufactured the outer rims.
If you need a new centre we will be happy to quote you prices also we may have a 4" outer in stock that can be used as an inner.
Pig