[GammaZeta]

I read a lot about using Euro headers for our Z4M's, but not being mechanically inclined, I couldn't find the answers to some basic questions. I read a lot about O2 sensors, bungs, etc., but it was all greek to me.

Maybe some people could explain and suggest a few things to me?

Is it any year euro headers from a european E46 M3? Is there specific part numbers? Anything I should look for in purchasing a set?

How much would I be looking at to pay for a used set in decent condition?

Will my car still be able to pass emissions?

If I had my mechanic install them, how much would the job probably cost? Would there be a lot of fabrication, twisting and changing things? Or would the install be pretty straight forward?

Thanks!