Performance chip
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mark D is usually preferred - he's a member of the board and it's probably the most recently developed chip, with the best performance out of the choices.Leave a comment:
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I had the Mark D chip on my old iX w/ larger injectors. It ran well, but ran a little rich.Leave a comment:
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Performance chip
Anybody has an aftermarket chip in their 325iX? If so, what do you recommend? ThxTags: None

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