This package does not fit the F32 coupe, F34 3-Series GT, or the F31 touring. It is for F3o and F80 sedans with 688 H/K audio packages (if you have 676 HiFi, contact us, thanks!)
The installation is plug-and-play to the HK amplifier, and our equipment rack bolts into existing trunk holes. The turn-on wire requires a single connection, without cutting. There are two holes to drill out of sight for wire passage – they are very hard to find afterwards. For these reasons, we recommend professional installation of the Full Bass Upgrade.
The enclosure mounts with a single bolt through the inside of the enclosure, to a receiver we provide which bolts to an existing bracket.
Our harness includes a center-delete loop, which allows you to easily test our recommended “surround off, center delete” setup for the H/K audio package.
The Level One package sends 600 watts of continuous RMS power to a very-high-output 10-inch subwoofer with integrated grille. The underseat woofers receive about 150 watts each of “band-passed” power.