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  1. E46 General
    Hi I have a 2004 330i ZHP with catless headers and I'm getting an o2 code for banks 1 and 2. I was wondering what I can do to pass northern Virginia emissions. I have a month left to fix it. please help
  2. Driveline, Performance, Tuning
    Don't get mad that I created another "eBay header thread." I just wanted to see what company you recommend. I have heard a lot of positive from blackhorse-racing. But then again, there are a lot of eBay headers out there. Here are all the 325/330 headers I found that have been bought more than...
  3. Driveline, Performance, Tuning
    does anyone know where I can get catless headers for my e46 325ci 2002 that is a perfect fit
  4. E46 General
    Hey Guys- just installed my o2 simulator- I went with a different way of using an o2 sim that has been track tested and I think is the better way to go rather than using the drug bin etc. This also allows one to not have to use an external heat source etc, and the o2 sensors can remain in the...
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