The only one I know out there is this one
http://www.ultimate-racing.com/produ...3-35i-downpipe
Maybe if someone inquires with EvolutionRacewerks or a popular vendor on this site.
mike@x-ph.com r33_RGSport
I had a Custom Enzo Performance on my X3 28i and you might want to inquire with them or your preferred local shop to see if they can do one custom for you.