The JB4 Tuner is a plug & play device for 2020+ Mercedes-Benz A35 AMG, CLA 35 AMG, GLA 35 AMG, and GLB models, offering power gains of 30-60whp on pump gas with more on higher octane or E85 mixtures. It safely increases turbocharger output by 3-6psi, enhancing power and torque. The installation is reversible, suitable for all-wheel drive and rear-wheel drive models. Bluetooth connectivity enables data recording, tuning changes, and firmware updates. Key features include various tuning maps, real-time gauge monitoring, and boost control for improved performance and traction. The JB4 is easy to install, offers advanced tuning capabilities, and is made in the USA with a 5-year warranty.
Vehicle Fitment:
A-Class: 2020+ A35 AMG
C-Class: 2020+ CLA 35 AMG
GLA-Class: 2020+ GLA 35 AMG
GLB-Class: 2020+ GLB 35 AMG, 2020+ GLB 250 2.0T
What is a JB4:
The JB4 is a sophisticated tuning system that enhances vehicle performance by connecting to sensors and the ECU, offering advanced features such as CANbus integration, Bluetooth connectivity, and free updates. It can be easily transferred between vehicles and has set the standard for plug & play turbocharged performance tuning.
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