ummm. So you blew your motor up by not putting oil in it?
How on gods green earth did you manage that? Don't you check your oil before track days? Or did you just have a big leak? Subarus get really loud as soon as they get about a quart low.
Everytrack day
Oil
Transmission Fluid
Coolant
Brake Fluid
Then again I own a subaru and they tend to eat oil at higher boost levels