4-Series Audio Upgrade

This sporty number from BMW has all the features yet the standard sound system is flat and muddled with poor stereo definition. It can sound much better given the FOUR MASTER treatment.
This sporty number from BMW has all the features yet the standard sound system is flat and muddled with poor stereo definition. It can sound much better given the FOUR MASTER treatment.
Click on a model below to download an article on an audio upgrade by Driving Sounds Magazine (79p each)