There's a scan of a 03 matrix parts catalog here at
http://www.genvibe.com/images/misc/manu ... atalog.pdf
on page 4 0f 17 of that PDF, the picture says its #28, which on the next page they say is toyota part number 48820-02030
that pdf lists different part numbers for struts and springs depending on base, awd, or XRS (vibe GT) but does not give different part numbers, just the one for the stabilizer bar link, which I assume is for all the variants, and seems reasonable to interpret this to mean that the same one fits all the various model variants