I ordered the following diesel catalytic converter, with a metallic substrate. The metallic version is supposed to be a bit more robust and much lower restriction. I hope it shows up as the part may be obsolete. If this works out, I may purchase a larger unit for my 20/2 Listeroid. It should make the engine a touch quieter too. Although, I use an automotive muffler and it's pretty quiet.
"Magnaflow 53004DM_Metallic Substrate Diesel Catalytic Converter"
EDIT: Foiled! Order cancelled by vendor. Ugh. The search continues.
