Modifications jdm vg30dett engine na rear differential with na gearing larger than twin turbo gearing Two Garrett gt2871R turbos jwt R5 500 series race cams jwt valve springs Ferrea over sized valves Ferrea valve retainers Power Enterprises super strong kevlar timing belt Block purchased from z1 motorsports with estimated 30,000 miles Nitrided forged crankshaft arp head and main ...