Cheers guys i called up honeywell & gcg, they said max oil pressure of 45 psi to the turbo for this one, it has a restrictor built in around the corner from oil feed but still needs 1mm restrictor pre turbo so i bought one thursday arvo. Yeah i was thinking of getting an inline oil filter as enzed didnt stock any when i got the restrictor. so i will order one online thanks. This turbo came on a spag manifold with a plated vl turbo with lots of mods, forged, int, fullspool, 31 spline billet axles etc etc. and LOTS of spares all for 2.5k. i just had to make it work IE make dump/ lines/ spacer etc it gets rego this week. This turbo is better then no turbo so i slapped it on i know its a fair upgrade from a stock rb30 turbo that pumps a pissant 150 kw, this one pumps 310kw so im expecting laggg etc. I dont know heaps about them but ill test it. then change it if i dont like it, next is comp & tune. what turbo would you suggest for rb30 300 kw give or take ? what sort of power can these boost to safely 400kw ? more i guess Turbo exit pic attached