The N2MB Wot Box not only acts as a 2-Step Rev limiter but also has a no lift shift feature built into it. The WOT Box works on both automatic and manual transmissions and is used to hold a certain rpm for launching the car without having to manually rev the vehicle with your foot. You program the box for the RPM you want it to hold and once activated with the clutch it will hold the desired rpm even with the accelerator pedal to the floor. The no lift shift feature works great for manual cars as it cuts ignition for a fraction of a second when the clutch pedal is pressed allowing you to shift easier due to the syncros meshing together better. We've used the WOT box on several of our project cars and it works great.