Below you see per country whether this part is street legal on a BMW X1, what you have to do, and where to buy one.
Non-original exhaust is allowed, but it needs a validation certificate and can't be louder than the original.
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Your exhaust may not cause noise nuisance, and EU noise rules apply to it. The APK checks the noise level and whether the exhaust leaks.
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A changed exhaust system needs document (1). A free exhaust or anything that makes the silencer less effective is forbidden.
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