Borg Warner brand new T4 twin scroll with internal wastegate of 1.05 bar. Range from 600 to 800hp applications from 2.0cc up to 3.5cc petrol. For those in the sector or for fans, we know that the internal bearings of the impeller units are made of light and resistant ceramic. This allows fluidity, reactivity and extension spool, greatly limiting the usual Lag of large turbines