ZZP LNF Fifth Injector Kit

The ZZP LNF 5th injector kit now features MAF based tuning and smoother ramp in for even better performance! This kit adds auxiliary fueling to your DI LNF.  The concept behind this kit is simple. When your mechanical fuel pump/injectors can no longer keep up with fuel system demands, you can divert some of the fuel from the DI fuel system and spray it directly into the intake manifold. Our 5th injector kit includes an adjustable controller that you mount inside the car. The controller allows you to set the MAF frequency that you would like the 5th injector to begin spraying. It starts at a low duty cycle in order to keep the air fuel ratio from changing abruptly. The controller also includes a high frequency setting which is the MAF frequency at which your 5th injector will reach 100% duty cycle. The fuel injector mounts to the intake manifold in an existing hole, so the manifold does not have to be removed from the engine. The install is simple, the most time spent on the install is