In reality and forums, many hosts install air prefilters for their own machines, but do not know whether they have any effect on engine performance. In theory: benefits. 1 the dust particles entering into the engine are reduced and engine wear decreases after loading. 2 the cleaning and replacement times of the air filter element of the original car are reduced, and the maintenance cost is reduced. It's bad. 1 after adding the engine, the air intake is blocked, the power decreases and the fuel consumption increases. 2 the sound of the engine became dull and the filter core alarm was misreported.
The amount of smoke in the rear row of the direct injection car is slightly increased. EFI can not see the increase in exhaust volume (the intake volume and fuel injection volume of the EFI are processed proportionally by computer). Do you have a direct or electric jet? Is there any change after loading?
