NO they are not just that easy. The real way to do this is to suck it into a fuel intake line. You dont have to use the device in the video, a bottle and hose will work too, but in order for this to clean fully, especially on a di engine, you need to follow this procedure. YOu will also need to scrub/scrape the valves in most cases, thats why the BG kit comes with a wire brush.Has anyone tried this on their Accord yet? Is it easy as it they say just pop off the MAF sensor and spritz away without stalling engine?