JB4 Tuning BMS BMW 220i 230i M240i M140i 2017+ F20 B38 B48 B58 Engines Only for Sale


When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Price: $529.00


How about up to 60hp to the wheels (80hp crank) on a completely stock car on pump gas for a B58 or up to 40hp to the wheels for a B48? The JB4 features a simple plug and play installation harness for easy installation and includes many features not found on 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, and much more. It automatically detects between the B48 and B58 models at boot up making installation and setup a snap.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 we strongly suggest the BMS DATA cable so you can load free software updates.

Applications:BMW 1 Series
• 2015+ B58 M140

BMW 2 Series
• 2017+ F22 F23 B58 240i/iX
• 2017+ F22 F23 B48 230i/iX
• 2017+ F22 F23 B48 225i/iX
• 2017+ F22 F23 B46 220i/iX

BMW 3 Series
• 2016+ F30 B58 340i/340iX
• 2016+ F30 B48 330i/330iX/330e
• 2016+ F30 B48 325i/325iX
• 2016+ F30 B46 320i/320iX
• 2016+ F30 B46 318i/318iX

BMW 4 Series
• 2016+ F32 F33 F36 B58 440i/440iX
• 2016+ F32 F33 F36 B48 430i/430iX
• 2016+ F32 F33 F36 B48 425i/425iX
• 2016+ F32 F33 F36 B46 420i/420iX

BMW 5 Series
• 2017+ G30 B58 540i/540iX
• 2017+ G30 B46/B48 530i/530iX/530e

BMW X Series
• 2016+ X1 B46/B48
• 2018+ B46/B48 X2
• 2018+ B58 X3 M40i


Benefits of JB4 Tuner over Full ECU Flash
1. Cost2. Support3. Flexibility4. Reversibility5. Cheap updates/upgrades6. More controls available7. Various maps for various types of driving/fuel type etc8. More power9. Error codes delete10. Returns to factory mode if any problem is detected11. If your car gets software update from the dealer, you need to go back to re flash (most companies won\'t offer to redo it for free)12. Free firmware upgrades13. No down time14. Undetectable when removed


Parts Search:


Follow