Gen 5 Viper Prefix ECU

Gen 5 Viper Prefix ECU. Fits 2013 - 2017 Vipers. Full ECU with Prefix Flash on it. Keep your factory ECU. Call or email us after you order with your cars information so we can process your order. No core, keep your current ECU. Viper Gen V Race Control Module Kit Features: Revised fuel, spark and cam position tables that maximize power increases associated with engine modifications and/or exhaust systems Aggressive off-throttle exhaust note Requires min 93 octane fuel. Rev limit increased to 6600 rpm with decreased hysteresis. Allows racing approved final drive ratios from 3.07:1 to 4.10:1. First to fourth gear skip shift eliminated for racing use. Catalyst monitor disabled to allow the use of high flow / or no catalyst and headers Air flow rationality diagnostic disabled which permits greater range of flow modifications Misfire detection disabled to permit reduce mass rotating assemblies and further modifications Includes all 2014 production updates. Not intended to work with superchargers, turbochargers, nitrous or power levels above 675 BHP