Plug and play PTCAN2 flex fuel sub harness for BMW B58 and S58 engines designed to integrate flex fuel controllers or ReFlex+ port injection systems without modifying factory wiring.

The Visconti B58 S58 PTCAN2 Flex Fuel Sub Harness is designed to integrate a Flex Fuel Controller (ECA) or ReFlex+ Port Injection Kit into your BMW.

It provides a clean and reliable connection point for CAN High, CAN Low, switched ignition, ground, and ethanol sensor input without cutting, splicing, or modifying factory wiring.

Engineered specifically for B58, S58, and X58 applications, it ensures proper CAN communication between the flex fuel controller and the factory ECU for seamless ethanol content reporting and integration.

This harness is sold in two versions: one that retains the crankcase heater connection on the turbo inlet, and another that deletes it for vehicles with upgraded or top-mount turbo kits.

Compatible with EcuTek and MHD+. Not compatible with bootmod3 (BM3).