So I recently bought a nice 1997 Triumph Trophy 3. It runs great, looks great and rides nice. The problem? The previous owner installed a set of "Oh my god what was that?" loud D&D pipes and a corresponding Dynojet kit. I ordered a set of stock pipes from Ebay to kill the dB level and pulled the carbs to lean it out to match. The factory jets (which he gave me) are 120 on the outside carbs and 125 on the center. The Dynojet install instructions call for 124's with aftermarket exhaust, 120's for stock exhaust and it also comes with a set of 116's in the kit. I put the 120's in but can't figure out why you would replace the factory jets with the same size and even smaller in the center carb to get more performance. The pipes haven't arrived yet so I haven't ridden the bike yet so I don't know how it's going to run. Should I go with the 120's? Install the 116's? The kit also has needles, emulsion tubes and calls for some auxiliary slide lift holes which have all been installed. Please someone explain what this kit is going to do for my bike!