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instant 50 HP...anyone heard of this?
From a 'friend' i don't trust
Under the right rear interior trim, there's a little silver box that says "IMFA." There are three small holes with little phillips head "adjustment knobs." Turn the orange knob all the way to the left, turn the green one to the right, and turn the yellow one to the right. Extra 50 HP instantly. It's for "emissions control." It's a CAN Emissions Module on the GM LAN system. I don't work for GM anymore so now I can tell you tricks. The module "de-tunes" the motor so it'll pass EPA.
brian
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