I've seen several trucks in a truck pull and racing that have their passenger side headlight removed...is this for intake or a weird cuinkidink??

El Cheapo cold air / ram air setup. With the headlight out you get air flowing directly to the intake area. http://www.dieselplace.com/forum/smileys/Cool.gif

ah! just making sure i wasn't missing a new style trend! Thanks

The style trend is to take both lights out. Cheaper than headlight covers, too!http://www.dieselplace.com/forum/smileys/Cool.gif