Can You Identify This Grenaded Engine?

An anonymous Japanese tipster sent in these photos of what happens when amateur tuning goes horribly, terribly wrong. Can you identify the engine from the trail of parts in the photo above? One more photo below.
 » 2/04/10 1:15pm 2/04/10 1:15pm

Nissan GT-R Owner Voids Warranty, Grenades $36K Engine

A member over at NAGTROC made the mistake of modifying his Nissan GT-R engine while it was still under its temperamental warranty. So, when he then broke the cylinder block, he was completely screwed. How it happened, plus pictures, below. » 2/01/10 11:00am 2/01/10 11:00am