What Does The Flap In The Air Box Do?

[edwardio]

What is the function of the flap located in the air filter box?

If you fit a induction filter kit, you won't have a flap! So why does the air box have it.

Anyone know?

[edwardio]

I just want to know if I make this flap permanantly open/remove it, will it have any adverse effects?

[aquazi]

What is the function of the flap located in the air filter box?

If you fit a induction filter kit, you won't have a flap! So why does the air box have it.

Anyone know?

Its a noise reduction valve... or butterfly valve.. Lots of people remove theirs.

i have removed mine, makes it have a nice roar after 4k rpm.... as long as you block off the tube when you remove it you will be fine (having had mine removed for the best part of 3 years now)

To remove it you disconnect all the tubes and then literally just pull it straight up.

[edwardio]

Thanks aquazi, I'll do that.

What would be the best way to block off the tube?

[aquazi]

Thanks aquazi, I'll do that.

What would be the best way to block off the tube?

I used a tire valve cap, and taped it on... others have used screws.... just seal it and leave it in the slot on the airbox.

[edwardio]

Thanks for the advice Aquazi.

Well I've taken it off and I see what you mean about the roar!!

Did you find when you removed your that it altered the performance of the car & how did it alter your fuel economy?