SST or fatty??

Ive never ran an sst, but I can tell you I am very happy with my fatty and powercore 2 combo. Front wheels lift up through 3rd and 4th and I've clocked myself at 52 MPH in 5th before having to slam on my breaks. We have a similiar set up minus the different silencers, im not sure how much of a difference my powercore 2 makes.
 
If I remember correctly from talking with the fmf tech, sst is for mid to top end and fatty is for mid range. call up fmf yourself, advice is free my man
 
My Conclusion
Low- fatty
Mid-sst
Top-sst
Sliding-tie
Cornering-sst
Launch- tie, fatty gets it for the start, but the sst quickly catches up
Noise-sst, my opinion
Looks-fatty, only for the dg silencer
Overall-SST FTW!
 
I run an SST and its a mid/top end pipe it does very well on my 240bbk.Ran a fatty and it didnt have enough top end for my liking.

Of the 2 pipes you got the SST is the better.Start around 300 mains.