I just purchased a bone stock 1997 gt with 53000 miles. So far, I put a k&n filter in it and Mac 2.5" cat backs. I want to get a mac pro-chamber h-pipe, but the whole "check engine" light situation is freaking me out. Maybe I'm thinking too much. If I install the MIL eliminators when I install the pro-chamber, will my check engine light come on if something else non-oxygen sensor related happens to my car. Say, anti-freeze in the tops of my spark plugs when my intake goes??? Or a bad control module??? Basically, do the MIL eliminators just take care of the exhaust codes or does it completely wipe out the computer for all codes??? Thanks for any help y'all can give me....