Could someone confirm for me that Mk1 900sl original end cans are stamped with these numbers which are high level as i assume they only came with high level. Zdn A04 Zdn B04 Edit, Just found out what i was looking for, @Ducbird could you delete for me, Thanks
I can’t say what information you found, whether it was accurate or otherwise, or what it confirmed or disproved to you, but IME your assumption was incorrect, and the codes you refer to relate only to the silencer part of the assembly, not the link pipe, despite the link pipe, low or high, being welded to the silencer entry cap. So, the codes you refer to can appear on high or low pipes for an 851/888 or 900SS.
Thanks Jon Yes did a bit more searching and found the same high or low, just need to be on the look out for a pair of hangers.