[mike@x-ph.com]

This brief article explains the importance of using a JB4 even if your BMW is already Flash Tuned. It specifically explains N54 applications but it mostly applies to all engines.

1- Advanced Safety system

• If boost exceeds your safety settings, the JB4 reverts to the stock map
• If AFR is too lean (15% variance), JB4 reverts to the stock map
• Extra safety for Port Injection and WMI

2- Absolute Boost Control System

• JB4 targets an absolute boost level where boost is always the same (Independent of external factors)
• JB4 has ability to set max boost per gear
• JB4 automatically tunes Wastegates and fuel trims
• Autotune maps that gives max safe power based on mods, fuel, and IAT (Intake Air Temperature)

3- On The Fly Changes

• Boost Levels
• Max boost per. gear
• Gauges

4- Better Feedback for the Driver

• Ability to change ANY settings, map, gauges using the JB4 app (on phone) without the need for laptop connectivity
• Ability to monitor real time boost, AFR timing, knock, and meth flow
• Ability to data log and email it to BMS using the mobile app (without the need for any cable)
• Ability to record data, 250x per second

5- Complete Tuning System

• Eliminates need for additional modules
• No lift shift
• 2 step
• Anti-Lag
• Port Injection Control
• Flex-Fuel sensors
• Water/Methanol Control
• Ability to work as a cohesive unit rather than have multiple modules working separate

6- FREE Upgrades and Support

• Lifetime Firmware Upgrades and Backend Flashes
• Free support from the BMS team

7- No Change In DME

• All DME table values stay intact
• JB4 adds performance and safety while keeping DME 100% in charge

Thank you to 'BMW Fanatic' on YouTube for the awesome explanation!

[Gnars]

Love my jb4, have had it on my N54 now for over a year now with no issues at all. Planning on doing a the jb4 backend flash sometime this week. Have plans to eventually go single turbo and still planning on keeping the jb4 to and run the single turbo flash and pi controller

[mike@x-ph.com]

Originally Posted by Gnars

Love my jb4, have had it on my N54 now for over a year now with no issues at all. Planning on doing a the jb4 backend flash sometime this week. Have plans to eventually go single turbo and still planning on keeping the jb4 to and run the single turbo flash and pi controller

I ran JB4 on its own , then flash on its own (tuned by 3 different tuners, all did a great job) and finally JB4 + Flash.

Jb4 + Flash power is by far the best

[1932blownhemi]

Tagged...

[Jklad]

Is this in response to bq's thread on why it's not needed at all lol? You guys....

[mike@x-ph.com]

Originally Posted by Jklad

Is this in response to bq's thread on why it's not needed at all lol? You guys....

No, i did not even see his thread.
Also this video was posted by Bimmer Fanatic, not sure if it was before or after Bq's thread.