Kenworth basically does away with duel exhaust

So they still have two but one pipe is a dummy pipe?

 

Most new trucks have got rid of stacks in place of the trendy grass burner set up.

 

I have wondered for a while why I see some trucks where one stack is putting out exhaust and the other isn't (usually when it's really cold and one is steaming and the other isn't)...now it makes sense.

 

Fashion over function...... The DPF and Catalyst cut the flow so much you only really need one pipe. The second is purely fashion statement and poorly located ballast.

 

Peterbilt has done the same on the trucks with over the frame exhaust but the 389 with the under the frame exhaust still run a y-pipe.

 

You guys see any of the three stack trucks ? Two dummies on the side , and the real one running up the back of the cab .

 

Ive seen a 389 done that way but with a weed burner cause they didnt wanna turn the 8" stacks colors from the heat of the DPF.

 

A double penile extension?????

 

I'd rather sport a single stack than try faking duals. Plumb propane into it and have some fun at least.