A need a little help from anyone who has been in Houston a while..

My car is on its last year or so of life, and because of that, will not pass the crazy standards for state inspection.. Is there anyone that knows of a place that will do it "off the books" or will pass anything? Its not a huge problem, but two of my cylinders are misfiring, and I cannot afford to run 2 hrs of diagnostics and labor and whatever else I need. Any help would be greatly appreciated!