Hello, friends.   Was changing engine oil on my Civic MB3 the other day and noticed the pipe between the air filter and the engine has a little hole. The car is fine to drive and never had problems with it but I don't like that thing over there.   It's the tube of number 6. All the sites where they sell this tube have it discontinued so I guess I won't find it to buy, and even If i could it seems expensive.   So is there a way to seal that hole? Or should I try