Burger Motorsports JB4 Tuner suitsย BMW B38/B46/B48/B58
Power gains of up to 100hp on a stock vehicle without the risks of flashing!
The JB4 is the most advanced and highly featured tuning system available for your B58 and B48 vehicle. Power gains are up to 80hp to the wheels (100hp crank) on a completely stock car on pump gas for a B58 and up to 40hp to the wheels (55hp crank) for a B48, gains with bolt-on parts, higher octane, E85 mixtures, and larger turbos are even higher.
The JB4 features a simple plugย & play installation harness for easy installation & removal and includes many features not found with any other tune. Including on the fly in dash map switching between factory and various performance maps, optional in-dash gauge displays for boost, boost limiting by gear for improved traction in lower gears, progressive water/methanol support, built-in data logging, built-in code reading, optional direct EWG control to prevent throttle closure with exhaust modifications, exhaust flapper control, and much more. Other more expensive tuners may claim to equal the JB4's technology but upon closer examination lack most if not all of the JB4's features.
Remember the JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only modification and enjoy an entirely new fast and smooth racing experience. The JB4 also does not require any user setup or customization but for those who are interested in logging, adding new features as we post them, etc, we suggest the BMS DATA cable or REV3 mobile phone adapter. The JB4 automatically detects between the B46, B48, and B58 models at boot up making installation and setup a snap.
JB4 Map Guide:
Map0: Stock tuning, fully disable JB4
Map1: 3psi over stock added (91 octane)
Map2: 4psi over stock added (91-93 octane)
Map3: 6psi over stock added (93+ octane)
Map4: Absolute target map with peak target of 20psi (93+ and/or 30% E85, EWG connector suggested)
Map5: Absolute target map with peak target of 22psi (30% E85+ fuel, EWG connector suggested)
Map6: Custom tuning map -- see details on n54tech JB4 page
Map7: Progressive WMI map with tuning a function of meth flow and user defined boost additive.ย
Map8: VALET / Low Boost Map
Note for 2018+ G chassis vehicles with the digital dash layout we have not yet added in the JB4 commands to allow in-dash control but will provide those via a free firmware update once developed. Until then a JB4 mobile adapter or BMS data cable is required for any map and setting changes.
JB4_B58 is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1ย applications.
Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. Separate JB4 Mobile app purchase also required.
ย
JB4 Power Gains, Features, & Benefits
โข Power gains of up to 100hp to the wheels on a stock vehicle
โข Improves 0-60 times and 1/4 mile times
โขย Preloaded with customย JB4ย BMW tuning software and up to 8 maps for various fuel and modification levels
โข Ethanol (E85) compatible tuning maps
โข Able to read/delete fault codes
โขย View and record up to 40 different gauges/engine parameters in real-time with the JB4 app.
โข Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
โขย Exhaust flap operation can be controlled in most JB4 applications
โข Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
โขย The JB4 offers a lot more performance, functionality, and safety than your average performance chip
โข Quick Plug & Play Installation
โข CANbus OBDII integration offering unrivaled tuning features and performance
โข Improved performance over non-integrated chip tunes
โข Runs as smoothly as stock, this is how yourย vehicleย should have come from the factory
โข Compatible with all driving modes
โข Fuel economy unchanged during normal driving
โข 91 octane fuel or better required for performance gains
โข Not VIN locked and can be removed without a trace and resold down the road
โขย Includes the rugged JB4 billet aluminum enclosure for protection
โข Made in the USA
โข Free USA Shipping
โข 5 year warranty
ย If your BMW has a B38/B46/B48/B58 engine and you don't see your exact model on the list below please email us.
APPLICATIONS
Note: If your BMW has a B38/B46/B48/B58 engine and you don't see your exact model on the list below please email us.
BMW 1 Series
โข 2019+ F40 B48 M135i
โข 2019+ F40 B38 M118i
โข 2015+ย F20 F21 B58 M140i
โข 2016+ F20 F21 B48 120i, 125i
โข 2015+ F20 F21 B38 116i
โข 2015+ F20 F21 B38 118i
BMW 2 Series
โข 2016+ F22 F23 B58 M240i/iX
โข 2017+ F22 F23 B48 230i/iX
โข 2017+ F22 F23 B48 225i/iXย
โข 2017+ F22 F23 B46 220i/iX
โข 2015+ F22 F23 B38 218i
โข 2015+ F45 F46 B38 216i Active tourer and GT
โข 2014+ F45 F46 B38 218i, 220iย Active tourer andย GT
โข 2019+ F44 M235i/iX
BMW 3 Series
โข 2020+ย G20 G21ย B58ย M340i/M340iX
โข 2019+ย G20 G21 B46 B48 318i/320i/320Li/320e/330i/330iX/330e/320Li
โข 2016-2019ย F30 F31 F34 B58 340i/340iX
โข 2016-2018 F30 F31 F34 B48 330i/330iX/330e
โข 2016-2018 F30 F31 B48 325i/325iX
โข 2016-2018 F30 F31 B46 320i/320iX
โข 2016-2018 F30 F31 B46 318i/318iX
BMW 4 Series
โข 2021+ G22 G23 G26 B58 440i/440iX/Gran Coupe
โข 2021+ G22 G23 G26 B48 420i/430i/430iX/Gran Coupeย
โข 2016-2020 F32 F33 F36 B58 440i/440iX/Gran Coupe
โข 2016-2020 F32 F33 F36 B48 430i/430iX/Gran Coupe
โข 2016-2020 F32 F33 F36 B48 425i/425iX
โข 2016-2020 F32 F33 F36 B46 420i/420iX
โข 2016-2020ย F32 F33 F36 B38 418i
BMW 5 Series
โข 2017+ G30 G32 B58 540i/540iX
โข 2017+ G30 G32 B46 B48 530i/530iX/530e
BMWย 6 Series
โข 2018+ย G32 G33ย B48/B58 630i/640i/640iX
BMWย 7 Series
โข 2016+ G11 G12 B58 740i/740iX
BMWย 8 Series
โขย 2019+ย G14 G15 G16ย B58 840i/840iX/Gran Coupe
BMW X Series
โข 2016+ B46/B48ย X1
โข 2018+ B46/B48 X2
โข 2018+ G01 B48/B58 X3 2.0i/3.0i/M40i including xDrive and sDrive
โข 2019+ G02 B48/B58 X4 2.0i/3.0i/M40iย includingย xDrive andย sDrive
โข 2019+ G05 B58 X5ย 40i/40iX
โขย 2019+ G06 X6 40iXย
โข 2019+ G07 B58 X7 40i
BMWย Z4
โข 2019+ BMW G29 B58 Z4 M40i
โข 2019+ BMW G29 B46/B48 Z4 30i and Z4 20i
What is a JB4?
ยThe JB4 is a plug and play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it's not the only tuning system that operates this way the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN locked to your vehicle and can quickly removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade.
ย
California Customers -- Download the CARB Version Installation Guide
ย
Stock vs. JB4 DYNO RESULTS
2020 B58 Powered BMW Z4 Dyno - 490 whpย with JB4 Map 5 and E40 mixture


VIDEOS
2017 BMW 230i with B48 Engine, JB4

ย
2016 BMW 340i B58, JB4, 93 Octane, Map3

ย
2016 BMW 340i B58, JB4, Pure Stage 1 Turbo, 93 Octane, WMI

ย
2016 BMW 340i B58, JB4, 93 Octane, WMI
VIDEOS
CAN FLAP DEMO
ย
ย
JB4 INSTALL GUIDE VIDEO
ุนููุงู ุงูู ูุชุฌ
ุจุงุฆุน
$19.99 AUD | $24.99 AUD
ุนููุงู ุงูู ูุชุฌ
ุจุงุฆุน
$19.99 AUD | $24.99 AUD
ุนููุงู ุงูู ูุชุฌ
ุจุงุฆุน
$19.99 AUD | $24.99 AUD
ุนููุงู ุงูู ูุชุฌ
ุจุงุฆุน