JB4 Tuner for 2020+ Mercedes A35, CLA 35, GLA 35, GLB 35 - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) 1 Black 3" Adapter Pipe

1 Black 3" Adapter Pipe

Some are mounted on the hot/turbo side of the motor preventing proper vapor condensation

it also includes a fully programmable CANbus system

allowing your N63 engine to draw in the coolest possible air for peak performance

Horsepower Supported 100% E85: 975*

JB4 Tuner for 2020+ Mercedes A35, CLA 35, GLA 35, GLB 35 - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) 1 Black 3" Adapter PipePower gains range from 30 60whp on pump gas and much more on higher octane or E85 mixtures. This quick install plug and play tuner connects to easy to reach plugs on top of the engine and safely increases turbocharger output by 3 6psi producing significant power and torque increases. Timing and fueling are appropriately rescaled for the increased boost and the installation is completely reversible in seconds. Compatible with all wheel drive and rear