hey i have a feeling this 15-20 hp increase is a little exaggerated. what do you think?

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Run away from those generic "chips". They usually will have a bunch of safetey perameters removed, dangerously advanced timing, removed rev limits ect. Get a custom tuned EPROM.

 

It is just a resistor for the IAT sensor. You can pick one up at any electronics store for a few cents.

It will just decrease your gas mileage and probably your HP. Don't bother.

 

LOL, those people on EBAY are so shady... It's exactly what schmoo said, and it won't help at all.

 

I agree. However if you need to remove your IAT sensor for say, turbo, the resistor trick isn't a terrible idea. Also it eliminates fuel fluctuation based off of IAT readings. What you do is look at the helms manual, it will show the resistance/temperature curve of the sensor, and you chose a resistor for some middle value, say 80 deg Fahrenheit...

IAT

-PHiZ