Expect nothing less than perfect power day-after-day from solid hole shots through top end. Standard equipment for the 2007 Indmar 5.7L is Indmar's ETC system - Electronic Throttle Control with Cruise. The Indmar developed system allows the helm throttle control to electronically connect to the engine's ECM. Throttle response is quick and smooth. The Electronic Throttle Control with Cruise feature is a bonus to recreational water-ski and wakeboard families. Based on the GM Vortec 5700 (5.7L/350 CID) block, it's field-proven multi-port electronic fuel injection (MPFI) system is matched to Indmar's custom designed two-plane intake manifold for reliable, torque-heavy performance. Other features include free-breathing Vortec heads and roller cam. It's brain is Delphi's most advanced water resistant ECM (Electronic Control Module) the MEFI-5 hardware/software system. The MEFI-5 system is custom calibrated by Indmar to provide maximum performance and drive ability. By custom calibrating the ECM to match hull design requirements and intended boat application this process allows boat and motor to perform as one seamless unit. The three-dimensional system precisely manages fuel, ignition and air. It is programmed to deliver the power skiers' and wake boarders' need, plus the classic turnkey starts, unhesitating dependability and fuel efficiency that only Indmar can deliver. Indmar's 5.7L is protected by Indmar's 3-year limited warranty that covers fuel and electrical systems. Certified: 3-Stars Ultra-Low Emission by California Air Resources Board 2007.