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Hey guys first time poster here and looking for some help, I'm about to list every part I have accumulated over the last 1 year in preparation for my r34 GTT manual going in to get built in the next coming weeks Firstly just like most, my initial plan changed midway and now I'm going slightly bigger turbo I have purchased a garrett g30-900 1.01 A/R now previously I had a 3076 (aeroflow turbo) but sold it and decided to go garret. With previous turbo I had purchased a 45mm turbosmart hypergate (14 PSI) However now that I have a garrett g30-900 I was wondering is my 45mm turbosmart too small for my set up? I'm aiming for 500kw on high boost (but will have a low boost setting of about 300kw) Should I look into getting the 50mm progate or is 45mm OK? I do want some response My current list of parts are: ARP head studs arp main studs Nitto head gasket 6 boost manifold Turbosmart wastgate 45mm Fuel regulator turbosmart fpr6 Fuel rail plazmaman Injectors 1650cc Bosch Turbo garret g30-900 Plazmaman intercooler Plazmaman full billet intake manifold haltech 2500 Haltech ic7 Radiator PWR ATP Oil catch can Twin plate clutch exedy organic Kelford 264 cams Kelford spring & retainers Supetech valve set Nitto I beam rods Nitto pistons 86.5 Nitto oil pump and crank collar HKS Cam gears Prp trigger kit ati Harmonic damper Astra electric power steering 2x 525 Fuel pump wallbro and Surge tank prp ls1 rb25 alternator kit R35 coil packs Aeroflow sump Hi-Flow pick up for sump Engine mounts tuff Radiator overflow bottle Nitto head drain Battery relocation kit CAN keypad 1.1mm restrictors Gktech clutch fan I haven't purchased ACL bearings yet I'll just get the builder.to organise thos according to clearance Block head and crank will all be machine bore honed etc...