I have a 99 bird and Iam going to look for a 2000 pcm so i can get a HHPIII so when i get my gears i can reprogrammy computer and what is y87 computer
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pcm ?
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Y87 is a performance package you could get on Firebirds. They came from the factory with 3.42 or 3.23 gears. I don't remember which. The PCM is programed for the gearing so you don't have to change anything else if you upgrade to those gears.<br /><br /> <a href=\"http://www.cardomain.com/id/nitroxxx28\" target=\"_blank\">http://www.cardomain.com/id/nitroxxx28</a>
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