Go look in a Eurotuner magazine. There are couple companies like ABD racing and Techtonics tuning that I can remember. I know there is someone who makes all the stuff he needs...
-1998 BMW 540i6(Axis Penta 20's,M5 shadow grilles,trunk lip,led tails,oem front lip,PIAA lighting)
-2002 Cadillac Escalade(Zinik Luina 22's,OEM HID upgrade)