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BMS G5 2STEP Relay for manual transmissions - N54 JB4 Upgrades

BMS BMW N54 JB4 G5 2STEP Relay for Manual (135i & 335i)


  • £54.25
    exc. VAT £45.21

In Stock


Enables G5 2STEP rev limiter for more consistent manual transmission launches and no-lift / flat foot shifting. Requires the BMS DATA cable or the JB4 Connect Kit (Rev.3).


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, for vehicles with manual transmissions only.


Free Next Day UK Delivery

FREE next day UK delivery if ordered before 11am! We can also ship worldwide, simply contact us for a quote.


BMS BMW N54JB4 Upgrades G5 2STEP Relay for Manual Transmissions Install Guide - ML Performance UK



BMS do not offer warranty on this item.


Manufactured by

Burger Motorsports / Burger Tuning (BMS)


Part Number


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