Can you please tell me what happens to the exup valve? Does this come off when just the silencer is fitted, or stay in place? If it comes off, what happens to the electrics going to it? Also, I believe there is a Lamda sensor. What happens to that?
With the exup removal you need to fit a relay in it's place to stop the malfunction light from coming on.You could just remove the cables and leave the main unit in place.
The a.i.s system is in place to help with emissions/catalyst operation,so is not needed with the FMF exhaust.
The O2 sensor has to be removed.The Yank WR's don't have an exhaust sensor,so there is no fitting on the pipe for it.It's not a major problem to make one,but it's really not needed.I have done a few plug chops to put my mind at rest and every thing is fine.
