JB4 Fuel Pressure Upgrade Kit for 2020+ BMW B58, S58, B48, Supra Kia_Oil_Catch_Can ensuring exceptional durability and long-lasting

ensuring exceptional durability and long-lasting performance for your Audi 4

see dyno comparison below

• 2019+ G20 G21 B46/B48 BMW 320i 2

on 50% E85 fuel

Something that anyone can buy

JB4 Fuel Pressure Upgrade Kit for 2020+ BMW B58, S58, B48, Supra Kia_Oil_Catch_Can ensuring exceptional durability and long-lastingFinally 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