Texas state exhaust laws for our trucks

[texanidiot25]

While my headers fit right up to the pipes on the truck, I want to have a pair of barely legal set of pipes for fun and track use that are as minimal as possible that I can use with the extra header collecter & flange. Now, I thought since our trucks were exempt from most all of the emissions laws, and talking to a few people, I'd have a plan. Some say they have to dump atleast past the cab. Others say the doors. Some say no mufflers, some say a "muffler".

Would like to have an online source to print out and carry around as well. Google has been useless.