The D inside the engine code stands for dual overhead camshaft (DOHC). This can be completed by fitting an RB25DE or RB26DETT cylinder head and or turbo to an ordinary RB30E/T block. The RB25DET will not be usually used.It’s not unusual for GT-R fans to sidetrack and focus on Z-tunes and 400Rs. Admirers on the brand are totally mindful of such mi