have any of you seen these "ecu mods" on ebay and other places? they say they mod your current ecu to think it's pulling in cold air and increase your HP by as much as 25hp. they're selling for only $10. they also say they're guaranteed. can these things possible be real? or are they just bs? let me know if any of you have had experience w/ these and if they work or not.

Waste of money. You are still pulling the same amount of air that can only hold so much fuel in it, even though the computer thinks its colder and denser then it is. All you really end up doing is using more gas and causing more problems, dont really get much if any power gain.


The only real way to get some gain from the ecu is to have it reprogramed (if you've done intake and exhaust mods). Jet Performance does reprograming but it isnt cheap. Have to send them the ECU and they have to unsolder the chip from the board, program it, then solder it back in.