c1500deathtrap : I am so ignorant of all these visual and what not's regarding the inspection process's here in Rockwall TX that I just can't figure out what my legal options are . When I try to get information from the web the legal verbage makes it difficult to comprehend what I can get away with , Then when I try to get answers from the inspection stations the answers are from on extreme to the other , I believe if the obd2 plug in reports that everything is fine I'm good to go in that department and then If I can conceal the engine management alterations for the visual I would be ok , But I don't understand how to make changes without affecting the obd2 test . I should probably start a new thread instead of hijacking this one , I hate to be inconsiderate of the original poster .