Hi Reintel,
I don't doubt the capability of the tuners in Sabah when tuning for power for drag races and they are respectable in this respect. However, when it comes to all round tuning, it is a different story. It is always a good thing to share and raise the awareness of our forum members on the pros and cons of aftermarket tuning and in the wrong hands, it can be costly and frustrating to the end users . The decision making task rests with the end users.
Maybe the increasing popularity of piggybacks like SAFC,E-manage, etc also indicates the bad experience from using aftermarket standalone ecu (either limited ecu capability or tuner factor). Piggyback still retains the factory mappings and settings and therefore the comfy factors. This is more suited to people like ashabmy who wants to retain quality of rides and driving but also want to have some mods done to his car which require some recalibration.
Wibeband AF meter is a good start but not the only tool used by pro tuners. I know wideband AF meter is nowadays so cheap that even the not so knowledgeable but well-to-do also install one in their cars for the 'cool' factor, something as common as a boost-meter. I am not talking about those narrow band oxygen sensor readers either. A good wideband in the wrong hand can also lead to disaster.
Dyno is just a part of tuning. But for some very experienced tuners, they can even do a proper job on the dyno without getting on the roads. Good thing with the right dyno is that it allows you to run through more different load conditions than you can encounter on the roads near your workshop. In addition, it is probably safer. :regular_smile: