Pwede naman i-waterproof ang electronics and electricals ng kahit anong gasoline or diesel engines. Electronic grade silicon sealant at heat shrink electrical insulation lang katapat nyan. Pwede diy kaso better sa casa ipagawa for the sake of the warranty. Yung fuse/relay boxes, ecu, tcm and bcm pwede din i-encase sa waterproof enclosures. Mahal lang nga aabutin. At kung talagang tatawid ka ng ilog lagay ka ng snorkel.