Thanks for the write up as I am in the process of shopping for Z4M header.
I want to get one that is closest to plug and play.
From reading various posts, my understanding is the stock has 5 bungs connections:
1) EGT
2) Bank 1 - pre-cat O2
3) Bank 1- post-cat O2
4) Bank 2 - pre-cat O2
5) Bank 2 - post-cat O2
Modifications are made because either the new header does not provide enough holes for those 5 bungs OR they are located incorrectly causing interference.
It looks like from picture, this Tuner Supersprint header has all the correct placement for those 5 bungs and will be direct plug and play, plus does not trip CEL.
Is my understanding correct?
http://www.turnermotorsport.com/p-85...converter.aspx