not much you can really do for more torque, you will have the new style engine with a couple of nissan bits on it with the revised induction system, throttle body and ECU decat and exhaust will help a bit but not much, not worth modding a 1.2 engine wise for power, noise its worth it but not power. keep the revs between 4,500rpm and 6,250rpm and theres not much more u can do