Today at the race meeting I was at. A guy had a Mario Collari modified Sirio. And to be honest this thing is as fast as a lot of the S3's out on the track. And I know for a fact the motors not even leaned off to it's full potential yet. I have to say I'm impressed. When it comes time for another motor, I know there is another motor out there that is worth a bit thought. From what I've seen at the race track these engines are very good
well, its COLARRI!!!
of course its fast
in my opinion, Collari's moded engines have the fastest high end speed compared to any other.
Plus i heard sirio have better high end too?
so plus plus.!
I love COLLARI engines, they are the best!