Just out of curiosity what is your concern about embroidery versus silkscreening? Is it ease of cleaning? Also I have no idea who's website this is but he sells the silkscreened ones here: http://fieroconcepts.mysite.com/
No list of vendors would be complete without mentioning Fierorog (Roger). I have purchased two of his 3800 idler pulley brackets and they were well done and fit perfect.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "