As sent to me from Jim: Here is his install and mod.
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If you like the looks of the vertical exhaust it is a real simple install.The reasons I opted for it is because:1) the stock exhaust blows on the ground creating a lot of dust. 2) when you are getting anything out or into the bucket by hand and the tractor is running you are breathing the exhaust fumes.
I'm not sure that I like the visual appearance of the exhaust, but the other two gains outweigh that. Installation instructions are provided with the kit.
INSTALL INSTRUCTIONS:
1) Open hood to remove the stock exhaust. Use a 13MM socket and ratchet with an extension to remove the 2 nuts on the u-bolt clamp on where the stock exhaust pipe attaches to the muffler. Then remove the two nuts from
2) Use a ratchet with 10MM socket and a 10MM wrench to remove the bolt and nut from the lower bracket on the stock exhaust pipe.
3) After all bolts are removed,grasp the stock exhaust and twist it side to side working it off the muffler pipe.
4) Use the 13MM socket to remove the two nuts on the heat guard. Place the new 90 on the muffler and replace the bolts and nuts through the heat guard into the 90 bracket. Replace nuts and tighten
5) Locate the correct cutout on the inside of the hood. Marked 3X20 for 3000 series tractors or 4X20 for 4000 series.
6) To cut out the hole in the hood you will need a 3-5/8th inch hole saw. I put the pilot bit into the hole saw so that it extended about 3/8ths of an inch beyond the saw. That way I could center the saw in the cut out circle to mark the center. After I got the center marked I extended the pilot bit out longer so that I could see that it was on the mark I previously made.
7) The hood is a black plastic material that cuts real nice. Cut out the hood keeping the saw flush with the hood as you make the cut. Don't worry about the hole being ragged. The plastic cuts nice. Also I made my cut from the inside. I was worried about the paint, but it cut nice from the inside also.
8) Install the rubber into the hole you just cut in the hood. When I went to do this I thought it wasn't right. Just work it all the way around into the hole and it fits fine.
9) Slip the new exhaust pipe through the hole in the hood and your done.
It took me longer to write this postl than it took to do the install. That's how easy it is!