X5 2004 3.0d Chips
Discussion
www.tuningbox.com. i've used them previously on three bmws, an alfa, and a volkswagen passat.
Invariably they have always improved economy and a decent performance gain.
My x5 is now 280BHP yet i still got over 32mpg on a run yesterday.
Invariably they have always improved economy and a decent performance gain.
My x5 is now 280BHP yet i still got over 32mpg on a run yesterday.
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