umm what year car??? well from my gen 3 you have to take the fender off to make things easy. when the fender is off you have to remove the resonator it's held on by 2 bolts, then remove the air box top and bottom part, then pull the intake pipe out, gona take some pulling but just yoink it out and run your new duct work. if your leaving the stock box in find my dryer hose intake post .