4 BAR plug and play TMAP adapters
Use these plug and play adapters to quickly adapt a 4bar TMAP sensor to your N54/N55/S55 BMW, raising the boost maximum boost range from 20psi factory up to 43psi. For most applications, For very high boost applications, the 4 BAR adapter can be used which requires Bosch 4 BAR sensor part 281002576 or 0281006102
