long tube headers

hello, are long tube headers with hi flow cats legal in the state of maryland?
Yep
That's a good sign. If you have to take your car through some sort of emmisions test each time you renew your tags, that's a bummer for performance freaks. Talk to a custom exaust specialty shop as well, they may have some helpful hints or tricks, know what I mean.

I happen to be fortunate and live in a back woods small town and we don't have to take our cars through anything to get tags etc..
So anything goes here basically. Guess we are spoiled here.