||05-30-2012 12:41 PM
The Ebay version of a miracle chip, its like a an 8 cent resistor that doubles your horsepower and allows you to get UP TO 25mpg more!!! I have also seen the little electric turbo that fits in the intake tube and runs on 12v. Laughable at best but they must be selling to someone . The maricle black box that installs in moments and completely transforms your vehicle. Nope, no no no. Most of these spoof your computer into thinking your engine is cold, dumping more fuel into the engine. Bad. If on Ebay, NEVER NEVER buy ANYTHING from China or Hong Kong. Best keep it stateside.
Some vehicles can benefit from an honest ECU remapping (if the vehicle even has an ECU).
For some vehicles you can get an already remapped ECU, a chip that you install by dissassembly of the ECU (have used these a lot om BMW), a software/firmware file or handheld device that plugs into an OBDII port. In any event you must verify the seller has a good track record and knows what hes doing to your specific vehicle. Just as the cheap crap is on the market so aren't badly done expensive remaps.
Mostly for my older BMW vehicles I got only marginally more power, a little more responsiveness and maybe... maybe another 1 -2 mpg. Worthy improvements definitely but no miracle.
I have no idea when Samurais started using ECUs or if there is anything to gain by remapping them. My guess would be little/none but I have never tried it. I will be interested to hear about it tho if some one does know.