Unless you expect to completely submerge it, most of the items should be fine as is--most manufacturers do quite well sealing their connections, etc.. The biggest concern is your air intake, not the electrical stuff. Just keep a can of some sort of electrical spray handy--if you dunk something, open it up and spray it out, let dry, and drive on. Intake mods have the biggest potential for disaster, as nearly all cold air intakes are susceptible to water ingestion. Best bet there is a snorkel.