| Careful, the RS tanks are quite different to the standard ones. Fuel pump is different, connections are different, etc.
You also need the airbox that is compatible with it, especially for the early ones as the fuel taps were on the left hand side.
The later tanks work as well with shower injectors in the airbox.
... and they do not have any recess for ignition key.
Unless you have such a set up, your best bet is to go for a larger tank with bigger capacity but still working with standard pump. I have one like that from QB Carbon. Not planning to sell it at the moment but they aren't too bad new. About £850 / £900.
p | 
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