As long as it exits from under neath the cab of the truck . It can exit underneath the bed of the truck as long as you don't have a cap on it . I believe thats the way the laws are written here in Md . I wouldn't want it exiting under my truck , especially if you have the windows up . Carbon monoxide is odorless and will put you to sleep without you knowing it . I would still exit it out from under neath . Just a 90 degree elbow and a couple of feet of pipe to be safe .
Last edited by Toms Blue Ram 1500; 10-31-2009 at 10:28 PM.