Hello professionals, I have bought a brand new Fat Boy Special year 2010 and have driven you now 4 months. I got from the sale a bridging cable installed which supposedly opens a throttle flap, but I have no idea which and how this works I can not recognize anything louder. But now to my main problem: I would like to upgrade to a louder exhaust system. since there is no decent with ABE or TÜV, I decided to use a I’ve been advised to install an illegal device Esibt there a lot of offers and one of Jackel and Hide from the Netherlands has been recommended to me. Now an alleged screwdriver, which should give me with the new engines ( Twin Cam B) with catalyst , heaviest engine problems if you just exchange the tailpipes. The Blackbox should then take damage!!! Can someone who knows how to give me a correct answer???? I ask for help in the matter the still a summer without thunder w would not be so beautiful. I thank you already in advance;-) Tomelito