Most folks I know have issues with street noise. The excess noise is caused by a wide bandwidth of frequency. The high end Japanese cars are now MUCH quieter, by half according to the app Sound Meter. (Compared to readings taken by the back sliding glass door. The hot rod style exhaust has a lower frequency and is joined with the guy with the "thumpa thumpa" comes by. Make sure you analyze and measure your Db levels of concern. Clean and weather proof using caulking and sealing products, measure again. That may actually take care of a large portion of the problem.