Bavsound M4 Coupe G82 (2021-2023) with Harmon Kardon Bundle bavsound-subwoofer Use your original factory airbag

Use your original factory airbag for installation — this does not affect safety or functionality

BMW Centre Caps (Set of 4)

Bavsound M3 Sedan G80 (2019-2023) with Harmon Kardon Bundle

A/F Adjust (Air-Fuel Ratio Adjustment)

Vehicle Information: Retrieves VIN

Bavsound M4 Coupe G82 (2021-2023) with Harmon Kardon Bundle bavsound-subwoofer Use your original factory airbag160 OFF! TAKE ADVANTAGE OF THIS BUNDLE PACKAGE OF SUBWOOFERS & STAGE ONE SPEAKER SET Bavsound M4 Coupe G82 (2021 2023) with Harmon Kardon Bundle SUBWOOFERS: GET DOUBLE THE BASS IN YOUR BMW OR MINI IN ABOUT AN HOUR Simply swap your factory underseat woofers with our plug & play upgrade kit and, get incredibly powerful, tight bass. [NOTE: REQUIRES HEAT GUN & DRILL FOR INSTALLATION SEE VIDEO GUIDE] STAGE ONE SPEAKER SET UPGRADE: GET UNBELIEVABLE, CRYSTAL