Mxyzptlk

Well, its starting to get cold here in Iceland. Dipping into the 30s now. Is it better for the engine to put the original airbox back in to keep it a bit warmer? Just dont think sucking freezing air into there can be any good.

macklum

I live in Ontario Canada ,the winter here drops to -40C. I leave my CAI on all year with no ill effects .The only problem I have encountered was when I followed a transport truck. The blowing snow covered the intake filter and the check engine light came on . I removed the snow ,no more light .

walight01

i would recommend putting a bypass valvue on the CAI, the colder the air is, the better, reguardless of how cold I live in texas so i don't get anything below 40F normaly

Sir Nuke

don't waste your money on a bypass valve...for that is all it is...a waste of money. and leaving your CIA on all winter won't hurt a thing.

Mxyzptlk

I have one of them already.

walight01

if you have one they you should be good to go

leungwingkei

I am concerned about using my CAI in winter too. I was wondering if the filter could suck up snow and when it melted, go into the engine via the intake as water. Any comments?

Maxx Mazda

No chance. The pores in the filter element are far to small to suck in snow - even water vapor for that matter. It would just hit the filter, and if the filter is warm enough, the snow will melt into water. Then, it's just absorbed into the filter element, and thus, you'll be sucking water vapor into your engine, but that won't hurt a thing. Think of it as relative humidity.

Also, how in the hell is snow supposed to get to the CAI? It's all tucked away in front of the wheel...

leungwingkei

Thanks Nick for your reply, I was just worried about that because the filter was down low.

Maxx Mazda

No worries at all! Glad to put your mind at ease.