The legitimacy and reliability of the Bimmer Plug can be evaluated from our experience in providing mods & accessories for all popular BMW models to the community. The company is a dedicated supplier of BMW related parts only, so they have attained proficiency in crafting aftermarket parts meeting all compatibility conditions precisely. For customer assurance, the company has a 14 days return policy in case of dissatisfaction. Transparent policies have been created for exchange and refund too.