Turbos are series 4 13b. Intercoolers are 2x350mmx350mm*50mm tube and fin. All inspected by mechanic. Was going to build TT v8 into commodore but out of big ones$! So going cheaper (and less powerful 1jz conversion. Bought for $1000.00 from importers so would like to sell for same. desktop dynos says this will make 715hp @6500rpm. Would be fun in lexus!! email me for more info.