Yeah this old banana. What is the actaul difference between them ? Some say its an extra mapping form Rover. But, if you look on some tuning chip sites, they list both and claim to get more from the 113. But how do they do that if its only some mapping that makes the difference ? I would have thought with a tuning chip or remap the figures for both with end up equal, because the extra Rover mapping would be lost. Confused. I'm guessing mines a 101, but she goes really well, so how do I check to see which one mine is ?