Air intake problems are a pain due to the layout of the engine bay in first gen explorers. Nobody has ever made a cold air intake kit for them, but a few have made kits to mount a cone air filter. KKM is considered the best. The only way to get an aftermarket cold air intake is to custom make a box yourself. Lucky for you, the air box tops are easy to come by. Check the classified on this forum. Anybody parting out a vehicle will have one. I'm guessing the gaskets on you intake tube are bad as well, everybody's are. They are unobtainable. Somebody decided to start molding the whole plastic tube and selling them for $140+, but the gaskets themselves are all anyone needs. You can silicone the ones you have and hope, but mine are past any chance of repair. I tried making my own, and while it can be done, removing the tube is now a PITA.