JB4PRO BMW B58 & S58 Flex Fuel Add On Harness C43 European and Australian customers must

European and Australian customers must check before ordering

This Y-pipe connects to the single midpipe with a slip-fit connection and then utilizes the two 2

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boost by gear to improve traction

Map 6: User Adjustable Custom Tuning Map

JB4PRO BMW B58 & S58 Flex Fuel Add On Harness C43 European and Australian customers mustThis plug and play JB4PRO add on harness for the BMW B58 and S58 platforms connects an ethanol sensor and an additional pressure sensor to the JB4PRO system. Includes a PNP 12v adapter and safety fuse for a simple clean install. For those running port injection also get the add on port injection harness which connects the JB4PRO flex fuel harness to your six additional port fuel injectors.