This Burger Motorsports wiring harness extension allows you to fit the high pressure fuel pump from the Z4/Supra (B58TU) engine to the original B58 without any need to cut your existing wiring.

This is 100% plug and play, made using Genuine BMW plugs by Williams Performance.

Fits all Gen 1 B58 engines, including those found in M140i, M240i, 340i, 440i etc.