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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

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.


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 JB4 with the G5 board. 


Free UK Delivery

Free Next Day UK Delivery if ordered before 11am! We can also ship worldwide, simply contact us for a quote.



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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