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BMS BMW N54JB4 Upgrades JB4 3.5 bar TMAP Adapter | ML Performance UK

BMS BMW N54 N55 3.5 Bar TMAP Adapter (135i & 335i)


  • £45.50
    exc. VAT £37.92
  • 4 reviews

In Stock


Use this PNP adapter to easily adapt a BMW 3.5 bar TMAP sensor to your N54 & N55, raising the JB4 boost maximum boost range from 20psi up to 36psi. Suggested primarily for larger turbo vehicles. After installing update the 3.5bar TMAP sensor value to 1 in the JB4 user adjustment page.

Note: You will also need the OEM BMW Pressure sensor for this to work.

Note: The BMS Adapter is needed to easily install this BMW 3.5 bar pressure sensor to your N54 or N55 with the Type A connector. You do not need the BMS Adapter if you have a N55 with the Type B connector.


How to check if you have Connection A or B:

Connection A or Connection B


Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. 



This is compatible with N54 & N55

(If you have an N55 engine, please check whether you have Connection A or B) 




BMS do not offer warranty on the TMAP Adapter.


Manufactured by

Burger Motorsports / Burger Tuning (BMS)


Part Number




20 x 15 x 3cm




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