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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

Compatibility Check - Enter the last 7 digits of your VIN. We will double check compatibility for you before dispatching!


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




Next Day UK Delivery

Get FREE Guaranteed next day UK delivery for orders over £50 (exc. VAT) on all in stock items. Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!

Worldwide Shipping

We ship worldwide via DHL International, simply enter your full address at checkout to see the shipping option(s) and quote(s). Same day dispatch available if your order is placed before 11:00 GMT on all in stock items!

Customer Reviews
5 Based on 4 Reviews
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Filter Reviews:
Joe B.
United Kingdom United Kingdom
What a difference....

Purchased a remap from mlperformance and due to the limitation of the STD TMAP I purchased a upgraded TMAP with the adapter cable. Easy to fit and worked a treat. So impressed with mlperformance... many thanks......

Antonino V.
Portugal Portugal
good product and good communication

good product and good communication

Joao R.
BMS BMW N54 3.5 Bar TMAP Adapter (135i & 335i)

Extremely quick service of shipping to Portugal!

Mark W.
United Kingdom
Great customer service

Easy to navigate website with lots of products for the N54. Great telephone support and the best bit is a hand written message in the parcel - great touch!