I am going to remove the entire AIR(emissions)system. someone suggested I plug the exhaust manifolds with some sort of screw in fitting. where should I look for this type of hardware and exactly what size (diameter & thread type) will I need.

Also will the AIR inlet lines just pull out after they are disconnected? Any help would be appreciated.

 

I plugged mine with brass plugs that I got at the parts store. I forget what size thread they were, but you can take out the air tubes and take them to the parts store, they should be able to get you the right size that way. Yes, the lines just come out after you unscrew them, but you'd better have some liquid wrench handy. Mine were a real PITA to get out.

 

I used brass pipe plugs, get them at ace hardware its a bit cheaper that way. 1/4 NPT is the size I believe. Wasnt that difficult to remove the air system really. Took me about an hr I thihk.