ido911s--Welcome! OTIS and SHRADER and I were talking about the Yellow, just last night. We all think it's going to be HOT item! I've done quite a bit of MODS to my engine, and I'm convinced the RINEHART True-Duals are the best bang for the buck. Some may disagree, and say the 2-into-1 produces more power. I, personally, think duals are a must for a Bagger. Horsepower cost money. Your 103 is nothing more than an air pump that, right now, is grossly restricted from it's optimum performance. To get more air in, and more air out, you would need bigger pistons, bigger heads, bigger cams, bigger throttle body, bigger clutch, and bigger deposits in your account! There. Now you know. See why everyone calls me a pr--k? Seriously, you picked the right Bike. [smiley=thumbsup.gif] Your Engine has the potential to be a rocket. But, remember, you're gambling with your reliability when you start making changes. [smiley=oops.gif] Seek the advice of an expert and make a decision. In my biased opinion, Don Tilley of Tilley's Harley-Davidson, in Statesville, NC, is the man to see if you're looking for Horsepower! Later--HUBBARD