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Re: new spoiler, spoiler removal
as far as I know the only upgradable program for your ECU is what is included with the GM supercharger for the 2.4. It wouldnt do any good to reprogram that to an NA Cavalier.
Robogeek on j-body.org is coming out with a program for 500 in a few months that will let you fine tune your stock computer. You will need a laptop.
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02 auto LS Sport 15.9@85
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