I love the FJR Yosh slip-ons! But, f***! They are pricey bastards! I got mine used. Forget how much I paid, but they still weren't cheap. I absolutely love their looks! And like their sound. And they are quality! So, you get an excellent quality slip-on that looks great, saves some weight, and sounds good. Personally, I like a bit more sound like my Holeshots have but these are good. On the other side of things, I have a set of Two Brothers slip-ons on one FJR and they are too loud for my taste. I'm fairly certain my Holeshots are lighter than the Yosh also. If I were purchasing now however, I would have a tough decision between the FJR Yosh which are chrome with CF tips vs. the all CF Yosh that are otherwise identical.
I am eager to try a pair of Delkevic someday in the future. I found a cheap pair on Craigslist for my riding buddy MudslideMiller and I think they look GREAT on his '14 FJR. Sound good too. Now I wish I would have bought them for myself! They are the Stubby 13" Stainless Tri-Oval and are a bargain at $445 brand new.