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Old 01-02-2013, 08:16 PM   #1
yaris9876
 
Drives: yaris hatch 07 640K original m
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anyone try one of these??

http://www.amazon.com/Volo-Performan.../dp/B004K6FNH0

wondering if they work.......
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Old 01-02-2013, 09:29 PM   #2
CTScott
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There are about 100 threads on here about those type of devices and no they do not. They have a $0.03 resistor to modify the signal from MAF. It will temporarily make the car run richer, but the ECM will quickly learn and adjust to it.
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