JB4 Units

What is a JB4? The JB4 is a plug and play tune available for
turbocharged vehicles. The JB4 tuner installs between your cars sensors and
it's 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.
JB+ BMW N55 M135 M235 M2
JB+ N55 M135 M235 M2There are many tunes available for the BMW N55. The most advanced and well prov..
£177.00
JB+ BMW B58 M140i M240i 340i 440i
JB+ B58 M140i M240i 340i 440i There are many tunes available for the BMW B58. The most advance..
£177.00
JB4 - Audi B9 S4/S5/SQ5/RS4/RS5 BETA with BCM
This easy to install plug and play tuner attaches to sensors in the engine bay and works with your ..
£777.00
JB4 - BMW B58 M140, M240, 340i, 440i tuning box
B58 JB4 - BMW M140, M240, 340i, 440i tuning boxThe B58 JB4 is by far the most advanced tuning box av..
£442.00
JB4 - BMW N55 Electronic Wastegate (EWG)
JB4 - N55 Electronic Wastegate (EWG)The N55 EWG JB4 is by far the most advanced tuning box availabl..
£412.00
JB4 - BMW N55 Pneumatic Wastegate (PWG) M135i
The N55 PWG JB4 is by far the most advanced tuning box available for the platform. The N55 PWG JB4 ..
£412.00
JB4 - MQB Audi S3, Golf R, Golf GTi, Seat Leon, Audi TTS, Audi S1
JB4 - Audi S3, Golf R, Golf GTi, Seat Leon, Audi TTS, Audi S1The MQB JB4 is by far the most advance..
£387.00
JB4 – BMW S55 M3 M4 M2 competition
JB4 – BMW S55 M3 M4 M2 competition The BMW S55 engine is found in the M3, M4 and the new M2 com..
£567.00
JB4 BMS Pedal Tuner VW Audi Seat
BMS Pedal Tuner VW Audi SeatThe VW Audi SEAT BMS pedal tuner connects to your throttle pedal and al..
£187.00
BMW Stealth Tank M3 M4 F30 F32
The 3 gallon stealth tank the WMI pump mounts directly to the tank and the entire assembly fit..
£299.95