JB4 N54 2 STEP / NLS Relay a8 d5 BMW 128i (2008 to 2013)

BMW 128i (2008 to 2013)

Intercooler (add on)

• SECURED THROTTLE BODY CONNECTION

• ARM Dual Tips or Single Exit Selection

Each S&B Body Mount kit includes brand-new OEM-designed bolts for hassle-free setup

JB4 N54 2 STEP / NLS Relay a8 d5 BMW 128i (2008 to 2013)JB4 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