Supposed to spool like a 35r and make more power then a 37r ( pte67) output like a 40r , from what I am readding , AMS has a new turbo using the same cartrige it is called the GT850R buy them and they are getting great results , I know it is big , but it is supposed to spool like a 35r 0r SC61 so maybe on a VET it could spool realitivley easy and quick and have high flow like a sc61 but with a hair more flow