Specifications:
100% Brand New Items, Never Used Or Installed
Outlet Size: 2"
Primary Tube Size: 1.75"
Head Flange Thickness: 7/16"
Outlet Flange Thickness: 3/8"
Header features 6-2-1 light weight piping design.
Fits both the 2.5L, 2.8L and 3.0L L6 BMW Engine
Professional Installation is Highly Recommended
No Instruction Included
Fitment
BMW E46 (323/328) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006* (2006 coupe only) NO 325/330, not long enough（except 1999 328i）
BMW E39 5 Series 1997, 1998, 1999, 2000 2.5L/2.8L/3.0L Engines
BMW Z3 1996, 1997, 1998, 1999, 2000, 2001, 2002 2.5L/2.8L/3.0L Engines
Package included:
1x Header Exhaust System with gaskets
Just as pictures shown