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The ability to check if a vehicles calibration has been altered from the original factory calibration already exists today. California ARB is already monitoring this data from their existing required annual inspection and maintenance tests. I was at an OBD symposium in 2017 and listened to CARB staff present findings on actual California vehicle I & M data where vehicle calibration ID and/ or CVN was different than what the manufacturer had reported in the vehicles emission application documents. Not surprising, the vehicles topping this list were Subaru WRX, Mustang, Camaro, Corvette, etc. The regulatory agencies are already aware of the aftermarket industry. It’s a resource issue for them. They will start cracking down on these tuner shops installing unapproved modification, which is technically a violation of the Clean Air Act. There will be a reckoning in this industry at some point, and it will drive companies out of business.
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