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performance chips
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  1. E30 (1982 - 1993)
    I was thinking about getting a performance chip for my 86 325e. When I looked on ebay there are some chips that are $100 and some that are $40 and some that are $200. Of course they all look identical, but are they all ACTUALLY the same thing and some just cost more because it has a name brand...
  2. E60 / E61 (2004 - 2010)
    Just got my first BMW ('09 528xi), great ride but somewhat sluggish acceleration. any recommendations? Performance chips? Suggestions? Thanks!
  3. E85 / E86 Z4 (2003-2008)
    Hello All, I would like to add a little bit more punch to my '05 Z4 and I was trying to understand how the chip tuning is conducted and what potential problems can this upgrade cause.. My 2005 Z4 is in a very good condition mechanically speaking... However, then I am debating, if this was...
  4. X5 E53 (1999 - 2006)
    Hi First post here. I have a 2004 X5 3.0 Diesel. I was recently approached by a guy offering to fit a performance chip/software. It was the first I heard of them, so I did a search and found them very widespread. What are the recommendations or warnings from this community? Thanks Rog
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