I won't make a big post because I don't want to repeat myself with a long thread that's boring nor seem like I'm following 'Blur around (seriously - I'm not
) but make no mistake that they will screwtinize any changes you make very carefully if your car has a problem. I know the law (okay, I don't know, but have a very general understanding) that you mean and think SEMA and some other aftermarket entities were fighting hard on legislation to protect customers with these laws. I'm just saying be careful with what you do with your car, because there are many ways to trace a problem to the cause.
"...What IS true: We anticipated that this would happen - we are never finished - and yes, Ford DOES deserve to win now and then. To think that GM can come out with a car to make ford throw in the towel is simply foolhardy..." - fbodfather