Search results for query: *

  1. C

    O2 sensor with headers

    With the headers that I have, the pre-cat will be going, but I hope to retain the/a full cat. I also hope to have a smaller center resonator, as I don't want to attract too much attention!! :sneaky: Thanks for the reply and info !! :) most appreciated...............
  2. C

    O2 sensor with headers

    Hi again. I am intending to fit headers to the Astra, ( Z22SE) and was wondering if others have done this. Using most of the original zorst, but removing the center resonator. Has it affected the O2 sensor downstream from the Cat? If so, what remedies have people used to extinguish the MIL if...
  3. C

    EGR "o" ring

    Actually I have decided to go that route and have sourced the plug, a VW item I believe. I shall simply remove the pipe. Thanks for your reply
  4. C

    EGR "o" ring

    Hi again, I think I have a weep from my EGR system where it goes into the inlet manifold under the throttle body. There is an o "O" ring there and it can be seen here , item #4 https://opel.7zap.com/en/car/t98/g/0/141-1/ Now, GM say the "O" ring is no longer a part. My question is: has...
  5. C

    New exhaust questions

    Hi there, I reside in Australia,and ask that you don't hold that against me .......................... I am contemplating replacing the zorst system on my 2002 G convertible complete with headers and 2.25" ( resonated ) Now, I notice that there are two O2 sensors, one before the cat converter...
Top