Mine is stock as well, no aftermarket parts here. I was just curious. Thanks!I've done it before no problem (My engine is 100% stock though) Some guys like to cover the fusebox with plasic, but I've never done that as I never run high pressure water in my bay. I also double check real quick to make sure everythings sealed up tight (Like dipstick, oil fill cap, EXC)
Like the sexy lady said though, take into concideration any aftermarket stuff you have, and how the water will effect it.