The only Mod I'm interested in is the upswept pipe for the C5, purely because it looks so cool. If there is a small increase in power that's good too, I think the UCE will have all the power I need or want from a Bullet. If I want fast, there are a lot of fast bikes on the market at good prices. I want a classy, vintage style big single, I've owned and ridden lots of bikes, Honda,Harley,Norton, BSA, Yamaha, Kawasaki, Suzuki, Triumph, Ducati, Ural, Chang Jiang and others. The most fun I ever had was on a 1940 BSA 500cc flathead and I've wanted a modern equivalent that I could ride without wearing out expensive hard to find parts. The Bullet Classic delivers in spades.