JB4 Tuner for 2013-2018 4.0T Audi S6, S7, S8, RS6, RS7, A8 - Burger Tuning toyota Increased airflow improves combustion efficiency

Increased airflow improves combustion efficiency

and consequently can rob your S55 of it's full power potential

Q:  I'm already running a port injection controller

Improves Airflow

JB4 Tuner for 2013-2018 4.0T Audi S6, S7, S8, RS6, RS7, A8 - Burger Tuning toyota Increased airflow improves combustion efficiencyPower gains of up to 60hp and 75tq to the wheels on a stock vehicle! The JB4 is an easy to install plug and play tuner that attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Includes full CANbus allowing the JB4 to access and incorporate all engine data in its tuning strategies, incorporate unique safety features such as keeping boost pressure