if they really wanted to prove a point, they'd run the exhaust into the passenger compartment.
Facepalm.....
Some people like showing off. Like fast cars, or lowered cars etc. These are just diesels showing off. Has nothing to do with "Anti-environmentalists"
an unnamed Wisconsin seller of smoke stack kits told Slate's David Weigel, explaining some of the rationale behind the movement. If hes into the environment, if hes into this or that, were not. I hear a lot of that. To get a single stack on my truckthats my way of giving them the finger. You want clean air and a tiny carbon footprint? Well, screw you.