look at the engine code... if it has a red valve cover either it has been painted, they replaced it with a red typ-r cover, or they swapped the engine

the engine code you are looking for will be b18c1

now i'm not sure where but look around the top of the engine on the head- you should see a stamp somewhere saying pr3 or p72

the numbers you want are b18c1 for the engine code and p72 for the head stamp.

in anycase it seems that something on this car has been modded before and whoever did it was seriously into it... i would highly suggest looking somewehre else for a stock model, even if you have to pay a little bit more.