JB4 3.5 BAR plug & play TMAP adapters and Extensions Use these plug and play adapters to quickly adapt a 3.5 BAR TMAP sensor to your N54/N55 BMW, raising the boost maximum boost range from 20psi factory up to 36psi for the 3.5bar. For most applications the 3.5 BAR adapter is suggested which requires OEM BMW sensor part number: 13627843531.Required for forward-facing manifoldsOur optional custom 32" (81 cm) 3.5 BAR TMAP adapter extension harness for forward-facing manifolds uses OEM connectors for a tight secure fit and features high-quality insulated wiring for quick clean signal transfer.
