I installed the Burger N20 on my 528i.. I am soo impressed, the car started to have a life ! what a difference it makes, and so easy to install yourself.
Just make sure you identify the right connectors, and disconnect the minus on the battery. All you need is a metric 10 wrench, just do it. Amazing, a d no issue with engine lamp and error codes. I rode it hard, and it goes soo well, Turbolag is just gone. Thanks Terry !
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