I looked into one of these units at the time (I opted for the airdoc to standard box), but i wasn't sure how i could be sure that kit is totally sealed from the rest of the engine bay. The fact that hot air rises, meant any gap at all and it could be just drawing it in.

Also Miami when you said you changed the filter over, and it made a difference to the economy, can you elaborate ? I swapped my OEM out for an aFe Power core (dry) at same time i did the airdoc. So when my economy improved i couldn't be sure which was responsible.

 

I.got an airdoc a few weeks ago and is great, I haven't seen any change in fuel economy but looks clean and let.me do a.quick check on the coolant hoses water pump.etc which I barely see with theach oem intake
A while ago I replaced the Oem filter for a airaid dry (red) filter and the Mpg dropped to 8 in less than a week . The lowest I got before swapping the filter was 9.5
In your case I can't tell what made the difference. In my the airdoc didn't do any change and the washable filter was disastrous.

Thanks for the info on the cold air intake .

 

Miami:

Thanks for your thoughts on the audio system. Here are the pics I promised now that I can see better. The housing box uses the windshield washer supply unit as the rear wall and there is a small gap to the left rear corner to the back firewall. However, it works in theory based on thermodynamics.

Hot air technically does not rise. It is displaced by the cooler more dense air which pushes it out of its way. So the cooler air coming in from the side of the unit keeps the warmer air out. You can see how tight the seal is by looking at the hood liner pic.

Hope that makes sense. I like the way it looks and everyone quite trying to sell me a new air filter every time I have an oil change done or the car is in the shop. That may be the biggest savings I have had from it. lol

Ted

 

I didn't see it fit as tight as that. That's better than I thought. Am still very happy with my airdoc. At the end of the day, they all do the same thing, just remove that OEM seagull

 

X2 much better tight seal than I thought. And the filter compartment is huge . The small gap could be fix it with some creativity.
Is it possible to use the box with airdoc
Thanks for the pics