Ready to take your BMW B38/B46/B48/B58 turbo to the next level?
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 B46, B48, and B58 models at boot up making installation and setup a snap.
THIS PRODUCT IS DESIGNED FOR OFF-ROAD & RACING USE ONLY!
*Not Available in California*
• All M140
• 2017+ F22 F23 B58 240i/iX
• 2017+ F22 F23 B48 230i/iX
• 2017+ F22 F23 B46 220i/iX
• 2016+ F30 B58 340i/340iX
• 2016+ F30 B48 330i/330iX
• 2016+ F30 B46 320i/320iX
• 2016+ F30 B46 318i/318iX
• 2016+ F32 F33 F36 B58 440i/440iX
• 2016+ F32 F33 F36 B48 430i/430iX
• 2016+ F32 F33 F36 B46 420i/420iX
• 2017+ G30 B58 540i/540iX
• 2016+ B46/B48 X1
Although our products are designed to work with a vast majority of BMWs, there are some situations where a cars specific configuration may require additional components or may make the car incompatible. For any compatibility questions, please email us at firstname.lastname@example.org. Thank you.