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Anyone who believes this is pretty naive...This scam has been around for ages and available for most all cars....Let me guess...Ebay?. It "May" alter a sensor ouput like IAT and get you a (very) few HP but without the fueling and timing adjustments a real tune gives you, it's just plain dangerous for your engine...
Anyone have any experiance with these? They advertise 60 hp and 4 to 7 mpg increase with it for $69. Sounds too good to be true.
I wonder if these guys have as much engine/performance/driveability/warranty experience as the guys at GM who designed the engine and the computer software.