Has anyone ever tried this before? I'm skeptical but it is cheap was thinking about giving it a try.


http://cgi.ebay.com/ebaymotors/Cold-...11737326QQrdZ1

This simple, yet effective modification will allow you to boost the power output of your vehicle's engine without sacrificing reliability or comfort. It consists of a small electronic device that will be inserted between one of your car's sensor and the ECU. This is also know as a "piggy back" device as it is external to the main processing unit (the ECU). You will feel the gain instantly with no expensive tuning necessary.



THIS MOD ADDS AN AVERAGE OF 13 TO 22 HORSEPOWER TO YOUR VEHICLE

 

I think this is ...all it is is a diode or a resister. I don't see what it coul do.

 

Gee, pay $5 for a resistor, or just follow Icemarks page and do it for pennies.
http://www.mazdamark.com/resistor_mod_installation.htm

 

Has anyone done it and noticed an increase in power? Where do I get this resistor, radio shack? Thanks for the link but I wish it went into more detail on how to do it yourself.

 

That's prolly a simple 20 cent resistor from radioshack... That thing is a rip off

 

Radio Shack.

Look at Icemarks site for instructions.

I've never done that resistor install......but right now the temp outside is 63*F and the temp sensor in the afm reads 2.3K ohms. So if you want the ECU to see a colder temp just add a 2K or 3K resistor inline with the GO (green/orange) wire coming off the afm to drop the temp the ECU is seeing.