JB4 N54 2 STEP / NLS Relay mercedes-benz • BMW 7-series E38

• BMW 7-series E38

*For the Audi JB4 platform connect the white wire to position #16 on the JB4 25 pin harness

Includes both Bluetooth App & 5v analog output for JB4 or flash tuning

2019 may also require an updated 2580 master chip (available here) if EWG wires trigger a startup fault code that clears until restarted

down shift blocker

JB4 N54 2 STEP / NLS Relay mercedes-benz • BMW 7-series E38JB4 N54 2 STEP NLS Relay This add on kit for BMW N54 engines allows your JB4 to "2step" the engine (cycle power to the coils) to build boost when not under load. Useful as both a noisemaker for both manual and automatic transmissions, and for launching with manual transmissions. It also allows No Lift Shifting (NLS) for manual transmission cars. The relay kit requires a JB4, back end flash map, and BMS data cable or JB4 mobile connect kit. Note that