The muscular new shape and dynamic look of the XTO 450hp V8 immediately communicate its incredible industry-first concepts and technologies waiting to be unleashed. The first direct injection 4-stroke. The first with integral electronic steering, linking seamlessly to Yamaha's Helm Master® system. The first to achieve a new level of reverse thrust, torque, and speed. It's a genuine performance revolution for larger boats and an incredible story. Achieve the ultimate. Discover Extreme. Technical Engine Specifications: Engine type: 4-stroke Displacement: 5559 cc No. of cylinders/configuration: 60 Degree V8, 32-valve, DOHC with VCT Bore x stroke: 96 mm x 96 mm Prop shaft output at mid range: 335kW / 6,000 rpm Full throttle operating range: 5,000 - 6,000 rpm Lubrication system: Wet sump Fuel System: Direct Injection Ignition / advance system: TCI Gear ratio: 1.79 (25/14) Dimensions: Recommended boat transom height: X: 640mm Weight with propeller: 442 kg Oil pan capacity: 7.8 litres Features: Control: Drive By Wire Remote Control / Throttle & Gear (DBW RC) Steering: Steer By Wire (SBW) Starting Method: Electric Start (ES) Trim & tilt method: Power trim & tilt (PT&T) Battery Charging:12v - 90A Output Propeller: Included