Stacks and water/soot

Best thing you can do with flat cuts is put rain caps on, of course the clacking of them at an idle always drove me nuts. I've also attached a coffee can to a stick and hung them on the stacks when I've parked don't worry if you forget them on startup they'll blow off.

 

Yeah they sometimes make a mess but it's nothing a bucket can't take care of. They do make some flappers to the mitred stacks that look real good I load next to a truck with them one time and they were quiet. I have turnouts on mine and I occasionally get water in them.

 

You will get soot all over your truck.... I have 2 7" cat stacks (like on bulldozers) on my pickup truck and they still get wet inside and my truck has black soot all down the side of my bed... So I can only imagine with straight cut or mitre what amount of water will come out in black soot....

 

My dad had miter cut stacks on his '07 T800. The ISX would shoot out some soot but I don't recall it being all that bad.

 

I've had that greasy soot land on my windshield when the trucks pass me. it's wonderful when your windshield wipers are in motion..

 

Depends on the engine and the truck. Some seem worse than others. I like miter cuts myself. My old b model cat in a t600 was bad for it. I put softer plastic jugs on it so when i would forget to remove them they wouldnt hurt the paint if they landed on the truck. My e model cat in a 379 pete hardly ever does it. Not worth worrying about imo get the stacks you like appearance wise. Btw i had turnouts for a year or so and they would throw soot once in a blue moon too.

 

I've got mitre cut stacks on my W9 with an N14. If I don't cover the stacks it makes a big mess. Not good when you're parked next to other guys and fire up in the morning.
I have rubber buckets. If they blow off they won't scratch anything on their way down.