Motorcycle Repair: TWEEKING EXHAUST, yamaha royal star, drag pipes

Question
HEY MIKE,
  MY QUESTION RELATES TO FACTORY EXHAUST BAFFLES, OR BETTER YET, THE REMOVAL OF BAFFLES. BECAUSE OF THE LOSS OF BACKPRESSURE, ARE THERE ANY CHANGES TO THE TUNING OF THE ENGINE THAT NEED TO BE MADE WHEN RUNNING STRAIGHT PIPE. HOTTER/COLDER PLUG, CARB ADJUST, ETC...
  I HAVE A YAMAHA ROYAL STAR 1300CC. YOU CAN'T HEAR IT COMING. REMOVING THE BAFFLES AND RUNNING STRAIGHT PIPE IS SOMETHING I WOULD LIKE TO DO, BUT I DONT WANT TO BURN A PISTON OR SOME S***. ANY THOUGHTS?
    THANKS IN ADVANCE.  BRUTUS

Answer
One thing you need to remember, the more open your exhaust the leaner the bike will run, so you will have to rejet the carb. I only work on harleys, but like I tell all the harley riders, straight pipes sounds loud, but they take away from the midrange power. Drag pipes are made for high RPM's.
Good luck and happy riding
Mike