One thing I have done to my M3 LR is fitted the gaskets to all doors and I have noticed the sound reduction from the outside once I fitted them to all doors. I do recommend this to anyone that has not yet done this to theirs. The sound closing the door has a better sound when closing and will keep out the extra dust trying to get in in the areas where dust will beat her over time.
I taken the car on the motorway and there is more silence to the outside with these gaskets fitted.
I taken the car on the motorway and there is more silence to the outside with these gaskets fitted.