Spec of the turbos as follows:
*TD High Flow billet massive 77mm compressor wheel (62mm inducer)
*CNC machined compressor housing with custom/modified larger inlet neck
*High flow 9 blade huge 65mm turbine wheel upgrade (60mm inducer)
*CNC re-profiled turbine housing with ported and polished manifold inlets
*Upgraded 360 degree thrust bearing assemblies
*550+bhp
Please be aware to get the full potential out of this turbo we recommend a minimum of a decat/sports cat, 97506 plugs, panel air filter or induction kit, Enlarged turbo inlet, Upgraded HPFP, custom map and a minimum of upgraded fuel pump using 99 octane pump fuel.
Higher octane from methanol injection or a ethanol mix in the fuel tank will obviously also yield better results than straight 99 octane.