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My advice? Enjoy it for what it is. The 525 is the base model and you're not going to get any performance boost no matter what you spend on it. Bimmers are expensive to maintain, so if you're on a budget, bank your cash for the inevitable repairs to come.
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2007 530xi, Black Metallic Sapphire, 6 speed manual, Sport package, Cold Weather Package, Premium Package, Premium Sound Package, Sirius Satellite Radio, MTech front bumper, Replica Style 166 wheels
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