what modifications have been done under this hood? i know its a mitsubishi

 

ill take a stab,
adjustable cam gears, upgraded blow off valve, aftermarket air filter, upgraded turbo kit, Strut tower brace, thats all i can confirm without guessing. Why do you ask?

 

I hope you don't plan on buying it....anyone that is irresponsible enough to run an open BOV on a MAF car AND paint their valve cover probably didn't make oil changes a priority.

 

.....this is honda tech....right?

Also you have no way of telling what internals are in the engine just by looking at it, and it just so happens things like valvetrain/cams, pistons and internals tend to make a HUGE difference in how an engine runs.