The H.V.S. Cyber Speed Version is designed to stabilize voltage in your vehicle for maximum battery efficiency, allowing its full potential to be released. H.V.S. Cyber Speed Version provides both function and stylish appearance; units are designed to fit perfectly for your vehicle, with specialized brackets and three additional grounding cables. The most secure and reliable mounting locations have been determined by our engineering and design team, to ensure an easy installation and excellent performance. An LED on the unit also operates as a system monitor, to alert you when your battery may need service or replacement. Applications: Subaru Impreza WRX/STi (GDA/GDF '03+)/ Nissan 350Z ('02+) / Mitsubishi Lancer Evolution ('03+)