Originally Posted by sikedude
The air tubes hook up with your pollution pump. Until your engine gets to operating temp the pump draws exhaust gases and recycles it through the intake via EGR valve. The air tubes are not a necessity for your truck to run properly, but don't plug them. But if your inspection mechanic wants to be a dick, he can fail you for them not being hooked up.
My air pump doesnt recycle the gases, it just puts extra oxygen down into the cat to help recycle? or uh burn the gases to be less pollutive =p any ways as far as the inspection, dont have to worry about it lol.......
The new cats are in! without air tubes....the cats were supposedly high flow but! they are def high flow now if you know what i mean lol Thanks fellas! if you want a video or pics lemme kno! Kev