Cart 0
BMS G5 Speed Limit Defeat Wires - N54 JB4 Upgrades

BMS BMW N54 JB4 Speed Limit Defeat Wires (135i & 335i)


  • £17.50
    exc. VAT £14.58

In Stock


Allows G5 board to remove your speed limiter. Not required if also equipped with BMS flash. Operating a vehicle at high speed involves extreme risk including the risk of serious injury or death and should only be attempted by professional drivers in a closed environment. Use subject to terms and conditions posted by BMS. Requires BMS DATA cable or 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. 


Free Next Day Delivery

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



BMS do not offer warranty on this item.


Manufactured by

Burger Motorsports / Burger Tuning (BMS)


Part Number