the more I drive. the exhaust is progressivly getting a bit louder. i hope this stop's soon, I liked its quiet deep tone. Is this true that exhaust has a break in period where they do get a little louder?

 

yes that is true. mine was more raspy than anything when i first got it but it cleared up a lot the first 2 weeks i had the car. its still a lil raspy when the car is cold but always comes back to a deep tone when it warms up.