Tuning M54B30
Hi everyone, this is my first time here, I was looking for help for my project 2003 530i, my project is to turn this car to Alpina, exterior and interior ( my interior is navy blue so I don't thing I am gonna change it). My topic is to how I am gonna achieve certain horsepower, 330hp or 280whp. I don't mind superchraging it or keeping NA, but the cheaper the better for me. So you guys have any recommendations for me? Thank you
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