I know that Tuning Boxes like the Race Chip Box are improving the Power and Torque but this is NOT Chip Tuning.
Chip Tuning is to modifiy the mapping from the stock setup in the ECU.
During this process are changed some parameters like injection timing,
that means the time WHEN and HOW long the fuel is injected is changed.
At Gasoline Engines is the ignition timing curve will be modified as well.
This Tuning box changed only the pressure from the fuel pump with the result the the fuel pump is worn out earlier because the fuel pump is running always at a higher level than the it should run.
The effect from this tuning is that during the injection time will be more fuel flows through the injectors with the result that the engine produce more power and torque.
To be honest you have more power but you or the next owner will pay for it because soon or later the injection pump will fail.
O.K., not all cars have a defect with the fuel pump after using a tuning box, this is depending from a lot of paramters (the time the box is used, milage, driving style) but you are in danger that this can happen.
I am a German and in Germany this "Tuning" is not said as a professional way, this is the quick and dirty way to have more power.
Mostly driver from company cars or leasing cars like that way because afther the using period from 1-3 years thay give the car back and the box is for maintanence or repair easily removed tho avoid problems with the warrenty, company or leasing company.
They dont care for the car like a normal owner do, they give after the using period the car back and that is it.
I go to a professionel chip tuner, he read out the mapping, modify it and download it back to the ECU, than a testdrive or a dynorun to check of all paramters (e.g. EGT is very important) and it is finished.
I pay for my Peugeot 2012 308 wagon with a 2.0 Turbodiesel Intercooler 430,- Euro/26k Pesos plus 60,- Euro/3600 Pesos for one dyno run (need normaly 1-3 runs) and one year warrenty from the tuner for my drivetrain is included.
Stock power is 150hp and 340Nm at 2000rpm, after remapping was 188 hp and 410Nm at 2000rpm and the max speed is improved from 205km/h to 217km/h (real measured with GPS and not with the speedo).
Real horsepower measured on the dyno and the fuel consumption is reduced from 14,7 km per liter to 16,2 km per liter diesel.
I can have a longer warrenty time but than the tuner charge me a yearly rate, this is depending from the absolute milage from the car and cost around 150-200,- Euro/9-12k Pesos a year up to 150k km.
I know you can not compare both countrys but you should search a prof. tuner with a good reputation to have more power and a better fuel consumption.
Sorry Race Chip,
i only tell the truths, i belive we should be honest together because in worst case it can cost a lot when the fuel pump get defective.