And if you are using the cheap ones that allow the hot engine compartment air to enter, your defeating the purpose of having it. Any system that has gaps or isnt completely sealed from the air inside the engine compartment is a joke & a waste. The factory setup is just that, they are sealed from the engine compartment air & are ran to bring in cooler outside air
Also do you know that 55MPH is the peak of the highest MPG that you can drive, anything lower or higher than that doesnt get that good of gas mileage. Anything over 65MPH gets the worse, and the faster you go, the lower that number drops also
Engineers spent thousands of hours and millions of dollars designing your car's intake system/turbo/exhaust and engine tune. You effectively "undid" their work by changing the intake. Feeding the car more air/fuel = worse mileage.
There's no way you should be loosing 6mpg. I have a mustang and it's been modified out the wazoo. And I've only lost about 5 mpg while adding over 100 hrp.
I don't know about VWs but that is common on Toyota vehicles. The excess turbulence around the MAF messes up the mixture - in Toyotas it often causes the check engine light to come on.
More air creates the need for more fuel . Since your cars processor is not designed to work with that intake it's wasting fuel trying to keep up with the demand the new intake creates .
no
I added an air intake to my VW gti mkv 09. I noticed a loss in mpg in the city which is understandable based on the way I drive at times but on the highway when I'm cruising at 70-75 mph I don't understand how I would be getting 6mpg less than before. Can anyone explain why this is happening? Just curious as to what could explain this. At this rate I will be changing it back to stock.
