Nope just a spark arrested silencer.
They both sound the same. I had FMF SST's with Power Core 2 silencers on my shee when I got it. I have to have a Spark Arrestor where I ride so I bought a pair of Turbine Core 2's. Didnt sound any different, and no power loss was noticed. If you have to have a spark arrested silencer the Turbine Core 2's are a pretty good silencer.