• 9th Anniversary Badge
    BMS BMW S55 JB4 Tuning Box F80 F82 F83 (M2 Competition, M3 & M4)
1 1
Animated GIF

BMS

BMS BMW S55 JB4 Tuning Box F80 F82 F83 (M2 Competition, M3 & M4)

BMS BMW S55 JB4 Tuning Box F80 F82 F83 (M2 Competition, M3 & M4)

£397.00 Inc. VAT
£445.00 £397.00 Inc. VAT
9th Anniversary Badge

Price Match

Price Match Guarantee

If you find a lower price at an eligible US retailer website, we will match it.

Questions about this part?

Our technical advisors can confirm fitment for your vehicle. Contact us with your vehicle details.

UNLOCK BIGGER DISCOUNTS WITH ML PLATINUM
Sign Up

Sign up now for FREE

View full details

The ultimate tune for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between, with the push of a button on your steering wheel. The JB4 installs and removes easily and includes many unique features not found in any other tune including user adjustable 1st and 2nd gear boost limiting, map switching in dash, electronic wastegate control, ethanol fuel support, and built in advanced CANbus based diagnostic tools. Installation is completely removable with no splicing or cutting of factory wires.

You may also wish to add the Data Cable or the Bluetooth Connect Kit for additional features.

For the latest performance results, updates, firmware, and map guide be sure to visit N54tech.com.

 

JB4 Map Guide
Map 0: Disable JB4 / Full Pass Through Mode
Map 1: Stage1 map adding approximately 40whp and 40wtq across the power band on pump gas. Suitable for all stages and fuel mixtures.
Map 2: Slightly more aggressive version of map 1 intended for vehicles with exhaust modifications and 93+ octane fuel. Can also be used with E85 and racing fuel mixtures.
Map 3: Slightly less aggressive version of map 1 intended for vehicles running on lower grade fuels such as 91 octane.
Map 4: OEM performance but with JB4 active for diagnostics only.
Map 5: //M low torque / linear throttle map.
Map 6: Custom tuning map.
Map 7: Race gas map. Requires 100 octane unleaded fuel and for the fuel mass connector to be installed. This map can also be used with up to 35% E85.
Map 8: Methanol injection map. Requires BMS FSB controller or methanol kit for progressive mapping and safety systems.


2018+ F87 LCI M2 Competition (S55)

2020+ F87 LCI M2 CS (S55)

2014+ F80 M3 (S55)

2014+ F82 M4 / M4 CS (S55)

 

JB4 Dyno results

BMS BMW F Chassis S55 JB4 F80 F82 F83 (M3 & M4) Dyno - ML Performance
JB4 on stock car

 

BMS BMW F Chassis S55 JB4 F80 F82 F83 (M3 & M4) Dyno with pure turbos - ML Performance
JB4 with upgraded turbos

 

BMS BMW F Chassis S55 JB4 F80 F82 F83 (M3 & M4) Dyno with E85 - ML Performance

JB4 on stock car with 5 gallons of E85 mixed with 91

 

Dragy run on Stock F87 LCI M2 Competiton with unfinished custom map6 setup

BMS BMW S55 JB4 Tuning Box F80 F82 F83 (M2 Competition, M3 & M4) - Dragy Run - ML Performance UK

 

BMS BMW F Chassis S55 JB4 (M3 & M4)

  

F-S55-JB4

  

Manufactured by

Burger Motorsports

 

Warranty

5 Year BMS Repair Warranty

 

JB4 Optional Phone Software

Change maps on the fly

 JB4 S55 CAN Flap DEMO

  • Price Match Guarantee

    We are committed to giving you the best price. if you find a lower price on the same item at an eligible US retailer website, we will match it.

  • Fast US Delivery

    For in-stock item, get guaranteed fast US delivery. Same day dispatch available on in-stock items if your order is placed before 1pm ET.

  • 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 1pm ET on all in stock items!