I have 3 loves... Hot Euro-Cars (BMW and Porsches), Skiing (National Ski Patrol) and Martial Arts (Aiki-Ju Jutsu)... Someday if I find a cool M5/BMW license plate trim and I'll swap it...
The Exhaust came with the car (I don't like it... too throaty), I'll check to see if there is a Mfg name/logo.