There has been some discussion in the past about the looks of the two! the remus looking more like the exhaust on the 916 styled model,but some prefer the stock look. I beleive the Remus is louder and i can't imagine the HP gain is gonna be much different between the two. I bought the remus i love the way it looks and sounds incredible and the main reason for me was $$$. I saved about $500 buying the remus versus the termi for my yr model!