Buddy i have a gtr and u are not going to make 300awkw (well a genuine 300awkw) without injectors, ecu, boost controller, exhaust, hmm what else am i forgetting probabley cam gears and definelty a fuel pump. Your car may have all of those im not saying it doesnt, just saying that bolting on a set of turbos to a gtr and remapping the ecu will definelty not get u that power.