X58 Flex Fuel Kit for B58 and S58 Engines

The Visconti Tuning X58 Flex Fuel Kit represents the most advanced and user-friendly flex fuel solution for B58 and S58 engines. This system features full CAN bus integration, communicating directly with the factory ECU while maintaining all original sensors and fuel lines. Its true flex fuel capability means your tune automatically adjusts in real-time based on the ethanol content in your fuel, allowing seamless operation whether you are running pump gas, full ethanol, or any blend in between, ensuring optimal performance and safety without manual map changes. The kit includes the Visconti Ethanol Content Analyzer, a Genuine GM Continental Ethanol Content Sensor, Visconti Custom 180-degree quick connect fuel fittings, and a Visconti Plug & Play Wiring Harness. You can choose between the CANBOX, which is a Bluetooth (BLE) Ethanol Content Analyzer supporting iOS and Android apps for configuration and updates, or the CANBOXPRO, which adds four configurable I/O channels for additional sensor inputs (like fuel pressure or coolant pressure) and PWM outputs for triggering relays or controlling auxiliary systems. Two harness styles are available: The PT-CAN v2 Harness is specifically designed for manual transmission cars and is compatible with all tuning platforms, including bootmod3. The PT-CAN2 Harness is compatible with EcuTek and MHD+ tuning platforms and is designed for easy installation with all wiring kept within the engine bay. It also includes an optional CCV heater jumper for stock turbo cars, which can be removed for upgraded turbo setups. Visconti Tuning has a history of developing innovative solutions, being the first to create a flex fuel kit that communicated directly with the factory ECU on vehicles not originally equipped with this functionality. This kit is proudly designed and manufactured in the USA, with harnesses handmade using automotive-grade TXL XLPE insulated wire and assembled in an ISO Certified Facility.