I was able to organize a Group buy with the manufacturer for the E39 M5 SuperSprint Headers!
The headers currently cost $3770. If we get 5+ orders they will sell the headers for $3399 per kit. They have 1 kit in stock and the others will be manufactured in Italy when the order is placed. PM if interested and I will add your name to the list once paypal confirmed.
"The Supersprint Header System fits all E39 5 series V8 cars including the 540i and M5. Increases output of the M5 by 30 rear wheel HP! Each pipe is individually fitted into the collectors so it makes installation much easier. This header is sold as a kit. This is one of Supersprint's best-selling items! "