Click underlined text for added descriptions NOTE...Most pipes for Case models are no longer made and extinct. Exhaust System For Early Models 100,200,400 series Muffler for 220,222,224,442,444 $225.00 Muffler for 226,446,448 C24703 $222.19 646 muffler for early models Muffler for 226,446, and 448 Newer style C29288 $246.17 Muffler for 226,446 and 448 C26974 $148.00 Kohler exhaust gasket $2.69 Muffler for 646 and 648 Loaders $194.79