... the vacuum tube, it can save 10% -25%, increase power at 20%,reduce emissions at 50% -80%, to reach Euro ... result is obvious: it can save 10% -25%, and to reduce emissions at more than 60%3, It ... connected pad of cylinder, it is also available at the vacuum tube between the engine brake vacuum ... the filter on the fuel saver, generally cleaned once at 10,000 kilometers or replaced.2, Remove the filter, ...