Well ... without seeing the whole graph it looks a little laggy with peak torque at 4250 as you say. The convex curve looking left to right confirms that. The tuners may be correct that you'll get some more out of the midrange with an ECU swap.

So 224Hp / 294nm ... Considering it's a 2 litre the numbers are reasonable but I personally would have been expecting more. Even with the RX being lighter you'll still probably be chasing me

Also, If that's a graph from Dynapack dyno then it's 224 at the hubs not wheels.

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[COLOR=Black]Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs.[/COLOR] "Instead of banning high performance cars - ban low performance drivers"