Nice one, hopefully I can swap them over then. The bit that was different was the prongs on the back of the clutch drum and the slots on the black bit on the oil pump that the prongs locate into - They definitely didn't go together (but that's not to say that one might even be the wrong one from before I bought it). I didn't have time to delve right into it when we were in the wood so it all got put back together and forgot about until now.
Going from the stickers on the 2159 it's an aussie import and reckons to be only 85db - it's a bit quieter I suppose but not loads. Will the baffle be visible from the outside or would I need to open it up on the seam?
With the screen in it, it did sound a bit like a newer 346 exhaust noise with that sort of whistly rattly noise (can't think of a better way to describe it).
Also, whilst thinking 357, did the older ones (darker orange) have more go about them thn the newer ones (lighter orange and auto decomp?).
The one I put the ARB pot on felt a bit less aggressive than the older ones but thought that was the pot, but the latest one I picked up has done next to nothing, appears to be running fine and pulls well enoughvbut just doesn't seem to have the punch of the older ones. The one we've been comparing it to was bought new and hasn't been fettled with so should be all stock. Just a bit curious.