If youre into window racing, then this is the mod for you! Had this kit installed on my previous vehicle(05 sentra) and it smoothed out window operation. The way I observed this is usually when you drop or raise your windows at night, you will see the headlights dim for a second or two as you put a load on the battery. This was eliminated after this mod. I would recommend this if youre really straining your battery with electronics such a custom audio system set-up. Never saw any power gains out of this, but then again it was a sentra lol
