JB4 Tuner for 2021+ Audi B9.5 A4, A5, Q5 & C8 A6, A7 (2.0T Only) - Burger Tuning 1 series (E81) 0L and BMW Z4 G29

0L and BMW Z4 G29

Large 16mm+ inlet and outlet exceeds OEM PCV sizing

but they will also last forever

8L TFSI & 2

JB4 Tuner for 2021+ Audi B9.5 A4, A5, Q5 & C8 A6, A7 (2.0T Only) - Burger Tuning 1 series (E81) 0L and BMW Z4 G29Up to 75bhp and 90ft lb Gain JB4 Tuner for Audi EA888 Gen4 2. 0 TFSI 261hp & 265hp (Group 16) 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