I found my DTUK tuning box produced more low down torque than my Bluefin, but the Bluefin more top - end power, its a very long story but i ran the tuning box for a long time on its stock setting, then i adjusted it for maximum performance, then i fitted a custom remote ajust for the tuning box - when i fitted the Bluefin (with its "regular" map) it lost a lot of bottom- end power/ torque compared to the tuning box, they produced custom remaps tailored to my other modifications -with the final one the car really does "fly"
I can actually run with the tuning box AND the Bluefin remap, the tuning box is fitted to the car, and i can connect it in about 2 minites, it is normally disconnected, and when i got the car "dynoed" i left it disconnected for the two runs i paid for (they are not cheap), as i wanted to try different turbo boost pressure settings
Anyway, the car produced a very strong 162ps/ 160 bhp and shedloads of torque, and a wide, fat spread of power/ torque -
Power and torque in ascending order - stock / bluefin / my car
The car has a lot of work done on it, and is probably the most radical/ highly modified of its kind, If truth be told a premium tuning box/ Bluefin / Remap alone makes the biggest difference to the car, (remaps / tuning boxes basically do the same thing) with the lightening/ weight saving coming a close second,
About the £7 "tuning box" - well you get what you pay for, the "chip" in the ist post picture IS a resistor in a DIL (dual-in-line) package - the high- end boxes contain multi- channel microprossesors, some with multiple maps and direct, control of the boost pressure etc , some are more sophisticated than many remaps - but can set you back £400 - £500
If you are paying £10K / £20k for a car,(or even 5k s/h) and £1400 for insurance, (which some FOC members consider cheap!) a £320 Bluefin or high- end tuning box (TDUK are about the same price) is not really a lot of money in comparison, often the cost of an inferior product could have gone towards something better (false economy etc)