Group 17: JB4 for VW EA888 Gen4 on MK8 VW GTI bmw-z4--e85-e86-e89-g29--2003---2019--esr5967309 This plug & play tuner

This plug & play tuner attaches to two easy to access sensors in the Ford Explorer engine bay and works with your factory ECU tuning to remap your boost

Generally speaking running two smaller nozzles is preferred to one larger nozzle for an equal flow to improve fluid atomization and distribution

Wirelessly connect the JB4 to your Bluetooth 4

• 2016-2017 N55 BMW F87 M2 (JB4_EWG)

• New OEM bucket

Group 17: JB4 for VW EA888 Gen4 on MK8 VW GTI bmw-z4--e85-e86-e89-g29--2003---2019--esr5967309 This plug & play tunerJB4 Group 17: JB4 for VW EA888 Gen4 The JB4 is a true user adjustable plug and play performance tuner for all EA888 Gen4 based models in the Audi Group range with electric assist. Now includes the JB4PRO adapter and free app built in! The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated