I have recently purchased a set of almost new (300 miles) samson pipes for my '04 B model. Everything on the bike is stock. I realize that I will have to upgrade to a K&N filter and have the bike's ECM flashed to run them, but my question here is do I HAVE to purchase a power commander or can I have Harley flash the ecm with a program specifically for the pipes being installed? I will be taking the bike to Harley but the sound as if they are scratching thier head about "Flashing the ECM" rather than installing a power commander...........any help guys? :surrender