The RIVA/ATHENA Pro-Series iControl ECU provides a huge performance advantage to Sea-Doo iControl models delivering over 40hp to the stock 4-TEC engine. ECU is fully programmable with either RIVA supplied mapping or user adjustable parameters. Most calibrations require 91+ octane pump fuel. Plugs directly into factory wiring harness via waterproof connectors. Riva Racing    Key Features Include:1: Eliminates restrictive GPS speed limiter.2: Enables craft to start in SPORT mode for full power delivery.3: Easy loading of supplied calibrations/maps for various performance applications. -Performance Fuel Mapping: Delivers optimal fuel required for your specific level of modification based on boost pressure. -Performance Timing Curves: Special racing curves produce more power throughout the RPM range. -Rev Limiter Increase: Stock rev limit can been increased so engine RPM can be run higher producing more boost pressure and horsepower. -Boost Control for turbo applications. (Plug & play connector for wastegate solenoid).4: Ability to customize RIVA calibrations for special applications. Using supplied software, user can adjust parameters such as Fuel, Timing, Rev Limiter & Boost Control.5: Retains all iControl functions.6: Retains all OEM dash display functions & Engine Safety Functions.7: Includes an integrated barometric sensor that automatically compensates for altitude.8: Includes plug & play connector for RIVA Dash/Logger unit (RY11840-LD-MD60).9: Includes plug & play connector for optional lambda sensor kit (part# RY11540-LC1-6S5) for data logging air/fuel ratios & tuning functions.10: Direct-Connect design eliminates need for auxiliary wiring harness.11: Individual Cylinder Knock Control function protects engine. System identifies which cylinder is detonating by tracking firing order utilizing OEM knock sensor.12: User selectable dual calibration capacity.13. Provides an easy-to-use diagnostic system that monitors all engine sensors. Users can easily diagnose & clear faults codes via a computer connection with supplied software. This eliminates the need for the B.U.D.S. diagnostic & service took, which is exclusive to BRP dealers only.NOTE: RIVA Pro-Series ECU is for competition use only.   [fblike]