Will Chevrolet Corvette tuning make me fail my emissions test?

My Corvette was tuned for better performance last year. Now it is time for my emissions test and I am a little worried. I didn't think about it at the time, but will Chevrolet Corvette tuning make me fail my emissions test?

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Answer provided by
Shannon Martin
Answered on Jul 08, 2022
It can depend on what was done to your ECU (engine control unit), but Chevrolet Corvette tuning can cause drivers to fail their emissions test.
Tuning overrides the factory settings in Chevy‘s microchip and sends signals to increase performance and fuel efficiency, but by doing so the car is creating higher toxins and emitting more dangerous pollutants.
This is why tuning is illegal in some states. Your best bet is to replace the performance chip with the factory-installed chip at least a few days before your emissions test.
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