BMW 2.1 IMP HARNESS | Plug & Play Harness for BMW & Impulse 4.320 Amplifier
Perfect Fit. Pure Signal. True Plug & Play.
The Focal BMW 2.1 IMP HARNESS is purpose-engineered to connect your BMW speaker system directly to the Focal Impulse 4.320 amplifier, delivering a fast, factory-grade installation with no cutting or soldering required. Its dedicated BMW connectors ensure a flawless, OEM-style fit and clean signal path.
Developed with twisted-core wiring, the harness effectively eliminates electrical disturbance, guaranteeing crystal-clear, distortion-free sound. It routes two channels to amplify the front speakers and two channels to power the BMW under-seat subwoofers, maximising system performance while maintaining complete compatibility with the factory head unit.
With a 4 m (13 ft) length and flexible construction, installation is simple, neat, and completely reversible — the perfect upgrade path for BMW owners seeking Focal sound precision.
Focal BMW 2.1 IMP HARNESS – OEM Precision. Simplified Power. Uncompromised Sound.







