They discontinued them and actually didnt use them on the later models. My 95 chassis just has a wire mesh over them. I guess they consider particles to be rather large. Lol. I had mice in my hood at one tiume and didnt want the dust to end up in the carbs. Here is what I did. If you go this route you HAVE TO make sure they are as pourous as you can find. Any restriction of airflow will change the way she runs. http://www.vmax4.com/vbulletin/show...o-get-air-filter&p=67269&highlight=#post67269