Motorcycle Repair: exhaust, harleys, pipes

Question
what do you think are the best sounding pipes on the market for my FXST

Answer
Sounds from pipes on a harleys are a personnel preference. What sounds good to me might sound terrible to somebody else. If you are looking for new pipes listen to other bikes and hear sounds that you like. Then ask the owner what he is running. That way you will get the sound you are looking for.
Good luck and happy riding
Mike