the average price of a 2001 beetle depends on the mileage of a car. a 100,000+ mileage still cost up to $17k. you should look on car classifieds to be able to compare car prices to get the best deal....
There is a large black plastic hose that runs from the air cleaner box (behind battery) to the intake manifold behind the engine. It is on the firewall behind that hose.