JB4 Tuner for 2013-2018 4.0T Audi S6, S7, S8, RS6, RS7, A8 - Burger Tuning M8 (F91) Our Stage 4 bucketed/bucketless hybrid

Our Stage 4 bucketed/bucketless hybrid fuel pump includes all necessary wiring and pump activation switch (hobbs switch)

- Do it yourself at home in only a few hours & save money

improves turbo spool and enhances the exhaust note on your 2

from the cool air being pulled in by the OEM air snorkel

This part allows for increased potential airflow and slightly increased induction sound

JB4 Tuner for 2013-2018 4.0T Audi S6, S7, S8, RS6, RS7, A8 - Burger Tuning M8 (F91) Our Stage 4 bucketed/bucketless hybridPower 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