[VindieselJetta]

Hello friends,
Z4M owner here, I’m hoping someone could take a moment and clarify a few questions for me for regarding adding euro headers. I have already purchased the headers and I’m preparing to install.
My questions:
• I understand they are a direct fit, with the exception of the O2 and EGT bungs. How many O2 (and EGT?) sensors need to be relocated after install to the secondary cat? How many bungs need to be welded? Where should the bungs be welded in relation to the secondary cat?
• I understand the wires can be stretched to fit or can be extended by splicing in more wire correct?
• Final q: I plan to purchase a tune at the same time (AA, ESS or Evolve..not sure which). Does that make relocating the 02 sensors unnecessary? Can the tune ‘turn-off’ the unneeded 02 sensors? How can the tune help me in this regard?

Thank you anyone for taking the time to help me!