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Discussion Starter #1
I've seen them all on like ebay, there little boxes you plug in to alter input to your ecu and changes fuel/air ratio to give you a little bit of power. Aren't these just Resistors that are put inline to change the signal and can't you make these at home? any input would be appreciated. Its for a Mazda but this is my forum no point in going somewhere else when you guys pretty much know whats happenin
~J
 

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i'm an asshole
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1,859 Posts
honestly, they're a waste of time and money. even though you can make them yourself, don't bother with it. from what i've heard, all it does is make your car run a bit richer, but no power gains will be seen.
 
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