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Discussion Starter · #1 ·
this is a follow up with a question I posted a while back on if cold air filters werent street legal.

Yeah they mess up the emissions, but from what I hear the air filter box has a connection with the O2 sensor, and if the box is taken out AFTER putting in the cold air filter, the 02 sensor becomes ineffective. True?

I'm getting this info from a friend of mine who's a big Ford Mustang nut, so I figured I'd verify it with you guys instead of going with his advice.
 

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Re: cold air filter topic again (Kobejitsu_X81)

untrue, I have a '99 S70 and there are no connections on the air box other than, air in, and air out. I've never heard of an O2 sensor working in conjunction with the air box, weird.

In Virginia, technically any intake or exhaust modification can be considered "illegal", but so is J-walking you sinner http://********************/smile/emwink.gif
 
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