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  1. 1st Gen. 1 Series (2004-2013 | E81, E82, E87, E88)
    I had my E87 116i (N43B16AA) in for an oil change and a full check. They read the error codes, and it came up with the 30E9 code. I knew it was there, as it had been the case for some time now. But they recommended an NOx sensor replacement, which is serious money. I dug into it a bit more, and...
  2. 2nd Gen. 1&2 Series (2011-2021 | F20,F21,F22,F23)
    Hi all, Just a quick one, is it okay to use exhaust paste on the cat turbo clamp to make it airtight or would it melt away?
  3. M135i/M140i/M235i/M240i
    Hi everyone, So I have attempted to remove my cat today which I have successfully done, though it did require removing the entire exhaust system and this is where the issue starts. So I went into this expecting it to be somewhat difficult for a novice, however I did not expect this level...
  4. Third Generation 1 Series (2019-2024 | F40)
    Looking at getting a decat fitted soon. I was wondering if I will run into any issues with less back pressure will I need a map to alter this or will it be good to go? If anyone has already decatted their 135 I would like to hear your opinions on it.
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