308-21786-00-35
If you can't find a NOS badge , Badge Replicas in Aussie do a repop .

Quite simply , I looked at my US market RT2 parts manual .
The two 311 prefix numbers relate to a DT2 , not RT2 .
Both 01 suffixed part numbers are for DT3 and RT3 , and use a different font .
On the original parts book the final suffix relates to the colour of the badge ,
35 ( Gray ) for the 360 , and 11 , which I think from memory is Black for the 250 .
I'm pretty sure the OEM badges are NLA , so unless you luck upon some NOS badges on Ebay ,
Badge Replica's is the way to go . I bought a 360 emblem for the RT2 exhaust sheild , and was happy with the product .

Further to Swoop's responses, Simon, this is the colour and font that you need (see photos).