I'm just putting my engine back together after doing various things, so the engine and everything came out. I've got most stuff back in the engine bay now, and have done everything under the engine (exhaust, etc), and most stuff on top, including the inlet manifold. The main things left are the throttle body, intercooler, alternator, and air intake stuff. While I tried to keep the various nuts and bolts organised, I've ended up with this mysterious one (see image). It has 14mm heads on the bolt and nut. Anyone recognise where it might go? Really hoping it not something that should be buried inside somewhere!
The engine is a standard WRX EJ205 from a 2005 Wagon.

 

These don't go together, it looks like a bell housing bolt with the 2 washers that go either side of the nut and bolt at the front of the pitch mount,plus a 14mm nut which could be a turbo/ up pipe nut.
Or the washers could be the ones for the engine mountings that go between the sub frame and the nuts.

 

That's a great spot! I'd forgotten one of the bell housing bolts wasn't there, so that's solved that mystery.
Thanks for the quick response

 

It turns out the two washers are for the engine mounts under the car. Will fit them once it stops chucking it down!

 

Result then mate