My STI limited was (stock) slower than my 135i .... although it was more manageable since it forgives more mistakes. On the other hand .... I was running 375whp so i'm used to something faster ... but i haven't started on the 135 yet
FYI: one of my friends in the subaru community has a limited like I had running 624WHP (on race gas) and 568WHP on pump!