Loud exhaust on rt side when engine starts

Hello, Thank you for your question on your BMW exhaust concern. I understand that type of noise can be embarrassing. We can certainly help you with that. Of course it would require bringing the vehicle in so we can pinpoint the source of the noise for you. Many times also, an exhaust noise is more pronounced when it is cold compared to when the exhaust gets hot because metal expands with an increase of temperature. We recommend to make an appointment to bring the vehicle in when you can leave it. It's best to check it when the vehicle is completely cooled off. Once we identify to source of the noise, we can give you an accurate estimate of cost to make the proper repair and the time required to do so. Please call us at 941-748-3297 and ask for Jason if we can be of further assistance. Thank You! Pete Mann