DSX AUXILIARY FUEL PUMP KIT FOR 2016+ CTS-V E85 The bucket assembly itself does

The bucket assembly itself does not have a check valve

and the latest addition to the X-Series

gravity filling doesn't do much

These are made with all solid state electronics that are self protected meaning there are no fuses

DSX AUXILIARY FUEL PUMP KIT FOR 2016+ CTS-V E85 The bucket assembly itself doesThe DSX Tuning Aux Pump Kit is the original and budget friendly alternative to big fuel supply with a simple installation. There's no need to get inside of the factory fuel tank, as this system taps into the tank and uses an external pump that ties back into the factory feed line. With the help of the factory fuel pressure control module, the ECM always knows what your fuel pressure is even when the aux pump kicks on to give a huge boost in pressure