Quote:
Originally Posted by Lawfarm
Aidan,
That seems like a reasonable gauntlet to throw down. If the piggyback devices are just a resistor or rheostat, and if you have this extensive experience in tuning BMWs, why not prove that you're right by making a $10 piggyback tuner box. Take a vid, put it up on Youtube, and prove you're right. Any reason you can't do that? The sellers of these devices have videos and dyno charts out showing the results--can you provide similar documentation beyond your comments alone?
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Can I see the dyno charts please
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Once again I will simply explain that I did not come into this thread to slam a company. I did come into this thread to explain how tuning boxes work, what they do to the ECU and how they crudely force extra bhp from the engine.
I never advise people to buy or fit them but I never said they don't work. Yes they do their job of forcing extra bhp from the engine.
And again, I never come to this thread to slam a company.