you need the right one for the car because on the air box is a silver valve the HAS to be connected when you buy the right one for the car you get a special plate that you bolt it to.an connect vaccum pipes to from the base that the air filter sits on. on this base theres 2 outlets one for that silver valve an the other for the oil beather on the cam cover. if you need pics let me know an i'll get em for you.