After many hundreds of passes on this completely stock RB25DET, the inclusion of a cheap, stainless exhaust manifold (which in hindsight, offered very poor boost control), killed the motor with a big lean-out. The added gas flow from the Nitrous couldn't bypass the back of the GT35 quick enough and the motor saw 29psi peak on top of the 100hp pill.
Video is here.
Video is here.