http://www.racdyn-usa.com/Merchant2/...ry_Code=e39tun
USD:779
Stainless Steel Sport Exhaust Headers for BMW with M54 6-cylinder engine, manual transmission. These high performance headers were developed in Germany by a leading tuner and are manufactured of out heavy gauge T304 stainless steel for long life. They are intended for track and off road use only unless you weld in catalytic converters.