JB4 Fuel Pressure Upgrade Kit for 2020+ BMW B58, S58, B48, Supra Kia_Oil_Catch_Can This is the highest output

This is the highest output ignition system ever developed for the N54 community Featuring 100% plug and play connections and low resistance 50ohm/ft proprietary plug wires

JB4 PRO is the latest JB4 tech

2021-Present Gen14 Ford F150 2

see dyno comparison below

JB4 Fuel Pressure Upgrade Kit for 2020+ BMW B58, S58, B48, Supra Kia_Oil_Catch_Can This is the highest outputFinally an upgrade kit that adds a high fuel pressure connection to the JB4 for B58 B48 Gen2 and S58 platforms allowing direct control of fuel pressure and fuel trims. Most useful for manual transmission vehicles or those running heavy E85 mixtures on a locked ECU. It's easy to install and includes a replacement JB4 board and a fuel pressure connector harness that attaches to your existing JB4 harness. Note this kit is not compatible with Gen1 B58