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2010 2011 BMW 5 Series Forum F10 chipexpress tuning box for f10 520d. Traceable? |
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02-02-2011, 03:32 PM | #1 |
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chipexpress tuning box for f10 520d. Traceable?
I came across a company called chipexpress that make a tuning box that they claim improves performance and economy of the 520d and can be removed and will not be traceable afterwards.
Does anybody know if their claims are correct or if theyare worth having? |
02-03-2011, 12:58 AM | #5 |
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02-03-2011, 01:16 AM | #6 | |
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