M5 with a super clean audio upgrade.Three JL Audio slash amplifiers powering the focal speaker components & the Logic 7 system to get better sound.Amplifiers being installed in a stealth location. Nothing will be visible.Focal Kevlar tweeters replace the harsh metal tweetersFocal K2 Power 100KRS component system replacing the front and rear speakersFocal Badge. The only visual sign of an upgrade.Rear speakers with the factory grill off. Looks like OEM.
