This is the test uobd2 did for Nitroobd2 chip tuning box working on vehicles— ISUZU, TOYOTA, NISSAN, Mazda.
Some tested report:
Used Nitroobd2 performance chip tuning tool to set up the fluid flow around the box
When it is plugged into OBD2 connector, NitroOBD2 receives the information from the car computer ECU. With the received data from ECU, NitroOBD2 adjusts the boost pressure, quantity of fuel, injection timing and pressure to increase the performance of your car.
Installed Nitroobd2 tuning box the Fortuner diesel hot stick and then see the results good drivers speeding driver hit economy does not escalate into it… 
NitroOBD2 tool worked on Nissan for light throttle acceleration.
Installed NitroObd2 box on the Mazda 3, then press the accelerator gently up to 207 km/h
After driving 200 km road total, NitroOBD2 adjusts itself to the car, according to the drivers’ habits and always keeps remaping the ECU to increase the performance of engine.
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Above is some of vehicles we tested, and uobd2 factory will go to test NitroOBD2 device on more vehicles.
Tested conclusion:
“NitroOBD2 Chip Tuning Box is very easy to use.”
Plug NitroOBD2 into OBD2 connector of your car. And turn the ignition on for 30 seconds. And Turn the engine on. NitroOBD2 settings are optimal and the best for your car. Even the parameters are different for each vehicle, there might not be a need to make an additional adjustment. NitroOBD2 will recognize your vehicle and your driving habits after around 200 km/150 miles driving, and then NitroOBD2 adjusts itself to match your car perfectly.
NitroOBD2 Chip Tuning Box works on the basis of changing the signal form ECU. As a consequence, it changes the whole injection map.
The main difference between NitroOBD2 Chip Tuning Box and Remapping tuning methods is that NitroOBD2 Chip Tuning Box is easily removable, and after unplug you go back to the factory settings. EcoOBD2 is the cheap and safe type of tuning. Remapping is a permanent change to your car. This is the expensive tuning and you cannot remove it.
NitroOBD2 is equipped with the engine protection function and 100% safe for your car engine. NitroOBD2 produced on the printed circuit board in SMD technology. NitroOBD2 Chip Tuning Boxes are high quality.
Resources: https://www.facebook.com/nitroobd2shop
