How do you guys get around emissions tests?

Thanks everyone, I'm gonna give the 'guaranteed to pass' stuff a shot and hope for the best since I don't know anyone nearby with a stock stang that i could borrow the 4-cat Hpipe. Damn wish i woulda kept that thing now lol. And I bought the x-pipe from Laurel Mountain Mustangs, not directly from bassani, and foolishly didnt keep the reciept...so i cant get a replacement for free.

I never failed using GTP. Guaranteed to pass. This is not internet hearsay, its fact. Thata with 3 diff cars. There is one guy here who didn't pass using it but I think his timimg was way off or something. Make sure yur timim=ng is 10*. BTW I am in MD too! Good luck Man!

Timing has never been fooled with so it should be at 10*. What part of MD are u in dude?
 
What are emissions tests and what are these socalled things called cats?? I once had a cat try to stay warm in the engine compartment of my lightning.. Remote start took care of that one.(by accident, I wouldn't want blood on my truck)