What sort of mpg you getting nowwell the torque hasnt changed much ... 210 --> 220 so i dont believe the gearbox will go thrtough much more stress.
i believe that mechanically both G120 and g165 are identical to the last screw - it would be more expensive to make 2 different cars rather than simply different software .
Ive done it gents - yesterday with a certified Quantum Tuning - Chip Tuning | Engine Remapping | ECU Programming | DPF Solution dealer
the car is now alive and aggressive after 4500rpm , the torque is also a tad higher and consistent after the 4400rpm point
mechanic said that after 3 days i may get more power due to adaptation
ive also got 30 day moneyback guarantee and return to standard map without extra cost - after that there is a small fee
very happy with my new engine ... and only 2500km with proper horsepower now