Like was said before the EVO uses all Titanium and the Race uses Stainless Steel. Basically the EVO is going to give you a better weight reduction and thats pretty much the only difference between the two. Sound wise is very similiar in volume and tone and performance is exactly the same. Basically if you wanna be able to say you got the "TOP OF THE LINE" Akrapovic setup buy the EVO. If you just want a good looking, good sounding, and great performing pipe that is about 3-4hundred dollars cheaper buy the Race system. I bought it and put it on my bike about a month ago and have no looked back one bit. I got every bit of my moneys worth out of it and thensome. It is a power producing great sounding beast.