I know my turbo is getting 'surge' at high (for stock) boost - I can hear the fluttering/pulsating noise - it sounds a bit like a cheap ricer blow-off valve - but continuous pulsing.

The G2 WW should solve that problem - the explanation I saw was that the surge is a cavitation issue on the inlet side wheel rather than back pressure affecting the exhaust side of the turbo.

Anyway, the shiny new G2WW arrived today. Out of respect for Diesel Site no pics or comments until I've run it past them.