Originally Posted by Corse-R
My actual experience is with Sirio EVO3 and is a real screamer, no matter if you get the normal, the STI or a modded one, is a real screamer and you'll not have to have any concern regarding their performance.
Seen other OS's and are quick, but are modifieds.
Agreed. All the EVO3's I've seen have been fast. Although some have had less than stellar reliability, they have been fast nonetheless. Getting a fast OS though seems to be a matter of luck. The bearing seems to be the weak point of the engine.