I had my engine fail in my 2001 Pontiac Grand Prix 3.1L (friend overheated it) so I purchased a very low mileage engine from a local junk yard but I noticed when I started to put it in that it has an AIR system on it. I believe the engine has california emissions because it came out of the same make and model car. My question is can I remove the AIR system? Do they sell plugs for the cylinder head? I have done some research and found that california emissions uses a different cylinder head but I am thinking that GM would sell plugs so that you can use that cylinder head for regular Federal emissions cars. Also is anything else different on the engine? Thanks in advance for the help!
