Just want to upgrade since my current piggyback is emanage blue. 
Already once tuned map suddenly reset back to 0 although mine is confirmed original. 

I dont need extra controls, but its fun to have.

Also reading up comments, many are saying piggyback not really stable and usually signal not 100% converted to the cheat value. Some signals might missed out, meaning maybe 20% signals are untuned original ecu signal, 80% are converted signal. Then i research more, its due to signal feedback too fast, so piggyback unable to convert as fast as the signals coming in. Some piggyback has more delay than others. Like kkt compact a tuner in penang said it has much delay so he dont recommend it.
Also why turbo cars which has less margin for errors recommends standalone...except if tuned with big safety margin.