Normally, the RB26DETT is known for building horsepower easier as opposed to RB25DET. It lags considerably less and has more robust internals – therefore the NEO Edition getting the RB26 rods. The RB25DE cylinder head through the A31 Cefiro C33 Laurel or R32 Skyline (aka: Non VCT) is usually used. https://nissanrb26engine90875.blogpixi.com/31451729/5-essential-elements-for-nissan-skyline-rb26-engine