Nice job on that install/manufacture. Bet you get some takers on the offer for plans and sources!
430 Full Stainless Exhaust Build
Hey y'all, been a while 
As many of you know, the exhaust on the 430 is a weak point. Over time, the elements and vibration from the diesel cause it to fall apart. Same thing happened to mine. I did not want a "stack" as I find them to be ugly, and wanted the exhaust discharge similar to factory.
The parts required for this include:
1) Two 304 stainless long-tangent 90-degree elbows, 1.5" OD
2) One 304 stainless long-tangent 45-degree elbow, 1.5" OD
3) A couple feet of 304 stainless straight pipe, 1.5" OD
4) 1/4" thick stainless steel mounting flange to connect to factory exhaust manifold (machined)
4) Mounting bracket/clamp for the opposite end of the exhaust, sized to fit alternate motor mount location (machined). Again in 304 stainless
Most of these parts I sourced fairly easily online. The brackets I designed in CAD and had machined by a friend of mine.
Once I had all of the components on-hand and test fitted, a friend came over with some tools and his TIG welder. Within a few hours, we had everything fully welded and installed. I struggled to find a stainless steel muffler that would fit, so opted to eliminate it altogether. She is definitely not quiet, but is much quieter than before, and the exhaust tone has mellowed significantly. I live out in the country and wear ear protection whenever running it, so the noise is not an issue.
The end result is a robust exhaust system that should last the remaining life of the tractor, although time will tell. Total cost to build was about $200, but I also got the welding done for free. If anyone wants a complete list of parts and where I got them from, along with my CAD drawings for the necessary bracket and flange, I would be happy to share them.
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As many of you know, the exhaust on the 430 is a weak point. Over time, the elements and vibration from the diesel cause it to fall apart. Same thing happened to mine. I did not want a "stack" as I find them to be ugly, and wanted the exhaust discharge similar to factory.The parts required for this include:
1) Two 304 stainless long-tangent 90-degree elbows, 1.5" OD
2) One 304 stainless long-tangent 45-degree elbow, 1.5" OD
3) A couple feet of 304 stainless straight pipe, 1.5" OD
4) 1/4" thick stainless steel mounting flange to connect to factory exhaust manifold (machined)
4) Mounting bracket/clamp for the opposite end of the exhaust, sized to fit alternate motor mount location (machined). Again in 304 stainless
Most of these parts I sourced fairly easily online. The brackets I designed in CAD and had machined by a friend of mine.
Once I had all of the components on-hand and test fitted, a friend came over with some tools and his TIG welder. Within a few hours, we had everything fully welded and installed. I struggled to find a stainless steel muffler that would fit, so opted to eliminate it altogether. She is definitely not quiet, but is much quieter than before, and the exhaust tone has mellowed significantly. I live out in the country and wear ear protection whenever running it, so the noise is not an issue.
The end result is a robust exhaust system that should last the remaining life of the tractor, although time will tell. Total cost to build was about $200, but I also got the welding done for free. If anyone wants a complete list of parts and where I got them from, along with my CAD drawings for the necessary bracket and flange, I would be happy to share them.
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Here are a couple pictures of the exhaust removed. For reference, the pipe lengths are (approximately) 5-3/4", 2-3/4", and 8-3/4", starting where it bolts up to the exhaust manifold.
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