Hello Yanmar 3GM owners, I need to replace the U-type mixing elbow and exhaust elbow assembly on my 3GM 20hp. If this topic has been discussed here previously, my apologies -- I attempted a search of the archives but not sure I am conducting the search correctly. There seems to be debate about stainless steel vs cast iron and welded SS vs cast SS. There is a complete SS kit at https://hdimarine.net/product/gm-kit/ that appears to be high quality and reasonably priced (for a boat part...). I will be grateful for any advice on source for the exhaust elbow/mixing elbow and cast iron vs SS vs cast SS. Also, advice regarding the replacement job as I will do this myself. Thanks. Jeff Laman 1981 C&C34 Harmony Ludington, MI
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