This 4.4L twin turbo engine with Bosch manufactured ignition coils is a top used engine choice for those valuing ignition reliability. The Bosch coils enhance spark precision, supporting smooth combustion and optimizing turbocharged performance. This V8 engine, with its twin turbo configuration, offers both power and stability. The DOHC system ensures precise timing for the twin-turbo setup, making this used engine an excellent choice for high-performance vehicles requiring both power and reliable ignition control.