My cousin took his S&B CAI off his truck before he sold it and gave it to me. When he cleaned out his garage he thinks he threw away crank case vent hose that hooks up on the left side of the intake tube. Their website just says its 18" long...can someone give me the diameter of it so I can buy a some hose to use for it?

 

Outside seems to be 3/4" and inside of 1/2". You should buy about 20" or so because 18" is just barely enough to cover the fittings.

Let me know if you need the instructions. I can maybe scan and email to you. They also just sent out a new intake connector. It is the soft rubber that connects the throttle body to the intake. Said they have seen some cracked ones. Mine hasn't cracked yet.