Jb4 anti lag 2 step. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > JB4 anti-lag kit Thread Tools Search this Thread 12-02-2015, 06:15 PM # 1 SgtGoldy SuperFastYo 54 Rep 790 Posts Drives: N54 335i TiAg Join Date: Nov 2013 Location: Orange County, CA Sep 8, 2016 ยท CLICK HERE FOR FLAMES AND FIRE!!!!https://www. < have you added the back end flash? 3) The 2STEP relay installed and generally working. < This is the firmware you require. Refer to the N54 JB4 install guide for information on locating this connector. Includes a programmed chip and wiring harness to allow on-the-fly anti-lag with your JB4 tuner. youtube. « Previous Thread Next Thread » Rolling anti-lag & 2STEP We install the JB4 anti lag and 2 step into the 335i so it can shoot some massive flames!! ***SEEMS LIKE WE MESSED UP IN THE WIRING!! That’s why it wasn’t working properly. I’ve also noticed it take a lot of time to build passed 6 psi on the anti lag 2 step combination. #jb4 #bmw #mhd #335i #pureturbos #boosted #turbo #n54 JB4 AntiLag Kit R 1,000. The time now is . uijq zcqte qfekbv sqsdrdrb suu ncfz tgnec nslg rrdv golyf