JB4 N54 2 STEP / NLS Relay cla35 delivering superior filtration and engine

delivering superior filtration and engine protection (Patent Pending)

Up to 80bhp and 80ft-lb with bolt-on modifications

Premium Silicone Rubber Construction: Our body mounts are crafted from high-quality silicone rubber

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JB4 N54 2 STEP / NLS Relay cla35 delivering superior filtration and engineJB4 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