I custom made this tip for the exhaust. The pattern and concept comes from late model OTR trucks that have particulate filter cleaning called "regen". When the exhaust goes into this regen mode the heat expelled from the exhaust could start a grass or other material fire so the tip is made to address this situation. With it's design the tip will fan out the exhaust and create a turbulent that rolls the hot and mixes it with cold air to dilute the high temps down.
When I saw this work I noticed that there was no exhaust pulsing in a specific direction but rather scattered out everywhere. This gave me an idea.
If I can spread out the exhaust then I won't kick up dirt and grass around the tractor.
Guess what.................................... it works VERY well. The exhaust will barely make a blade of grass move at 2000 rpm.